25290265 has 64 divisors (see below), whose sum is σ = 42319872. Its totient is φ = 13996800.

The previous prime is 25290259. The next prime is 25290283. The reversal of 25290265 is 56209252.

It is not a de Polignac number, because 25290265 - 2³ = 25290257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 155074 + ... + 155236.

It is an arithmetic number, because the mean of its divisors is an integer number (661248).

Almost surely, 2^25290265 is an apocalyptic number.

It is an amenable number.

25290265 is a deficient number, since it is larger than the sum of its proper divisors (17029607).

25290265 is a wasteful number, since it uses less digits than its factorization.

25290265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 25290265 is about 5028.9427318274. The cubic root of 25290265 is about 293.5290754754.

The spelling of 25290265 in words is "twenty-five million, two hundred ninety thousand, two hundred sixty-five".