| 25 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Numbers 0 - 99 | |||||||||
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
| 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |
| 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |
| 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 |
| 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 |
| 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 |
| 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 |
| 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 |
| 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 |
25 (twenty-five) is a positive integer following 24 and preceding 26. Its ordinal form is written "25th" or "twenty-fifth".
Properties[]
- 25 is an odd number.
- 25 is the 5th square number[1].
- The 25th of December is known around the world as Christmas Day.
- 25 is the result of the Pythagorean triple 32+42 or 9+16=25.
- Its prime factorization is 25 = 5².
- 25 is the first Friedman number.
Counting to 25 using fingers[]
It is possible to extend standard counting system so that it can count up to 25. The matter is that when we bend the first five fingers on one hand, we bend one on another hand and unbend all on the first. Extension of this method can be used to count all the way to 1,023, using powers of 2.
In googology[]
- In Greek-based number-naming systems, 25 is associated with the prefix "pentaicosa-", and with the prefix "quinviginti-" in Latin systems.
- It can be named garfive with the gar- prefix.
- DeepLineMadom calls the number unoo-pedecol.[2]
As a cash denomination[]
Some currencies, such as the Aruban florin and the Netherlands Antillean guilder, have banknotes with this number in the denomination.
Some currencies, such as the Costa Rican colón and the Uzbekistani soʻm, have coins with this number in the denomination.
Sources[]
- ↑ OEIS, Sequence A000290
- ↑ Pointless Googolplex Stuffs - DLMAN Part 1 (retrieved 9 November 2024)
Gar-: garone · gartwo · garthree · garfour · garfive · garsix · garseven · gareight · garnine · garten · garhundred · garmillion · gargoogol · gareceton · gartrialogue · gargoogolplex · gargiggol
Fz-: fzone · fztwo · fzthree · fzfour · fzfive · fzsix · fzseven · fzeight · fznine · fzten · fztwenty · fzthirty · fzhundred · fzthousand · fzmillion · fzgoogol · fzmilliplexion · fzgoogolplex · fzgargoogolplex · fzgiggol
Fuga-: fugaone · fugatwo · fugathree · fugafour · fugafive · fugasix · fugaseven · fugaeight · fuganine · fugaten · fugahundred · fugagoogol · fugagoogolplex · fugagargoogolplex · fugagiggol
Megafuga-: megafugaone · megafugatwo · megafugathree · megafugafour · megafugafive · megafugasix · megafugaseven · megafugaeight · megafuganine · megafugaten · megafugahundred · megafugagoogol · megafugagoogolplex · megafugagargoogolplex · megafugagargantugoogolplex · megafugagrangol
Extensions:
Booga-:: boogaone · boogatwo · boogathree · boogafour · boogafive · boogasix · boogaten · boogahundred · boogagoogol · boogagoogolplex
Gag-:: gagone · gagtwo · gagthree · gagfour · gagfive · gagsix · gagseven · gageight · gagnine · gagten · gaggoogol · gaggoogolplex