325 (number)
325 is the natural number following 324 and preceding 326.
In mathematics
- 325 is the smallest number to be the sum of two squares in 3 different ways: 12 + 182, 62 + 172 and 102 + 152.
- 325 is the smallest 3-hyperperfect number.
- 325 is the smallest odd unprimeable number.