265025257 has 16 divisors (see below), whose sum is σ = 322876800. Its totient is φ = 212352768.

The previous prime is 265025249. The next prime is 265025261. The reversal of 265025257 is 752520562.

It is a cyclic number.

It is not a de Polignac number, because 265025257 - 2³ = 265025249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265025207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10258 + ... + 25204.

It is an arithmetic number, because the mean of its divisors is an integer number (20179800).

Almost surely, 2^265025257 is an apocalyptic number.

It is an amenable number.

265025257 is a deficient number, since it is larger than the sum of its proper divisors (57851543).

265025257 is a wasteful number, since it uses less digits than its factorization.

265025257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15120.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 265025257 is about 16279.5963402045. The cubic root of 265025257 is about 642.3362344607.

The spelling of 265025257 in words is "two hundred sixty-five million, twenty-five thousand, two hundred fifty-seven".