25891264 has 28 divisors (see below), whose sum is σ = 58718704. Its totient is φ = 11096064.

The previous prime is 25891259. The next prime is 25891273. The reversal of 25891264 is 46219852.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28449 + ... + 29344.

Almost surely, 2^25891264 is an apocalyptic number.

It is an amenable number.

25891264 is an abundant number, since it is smaller than the sum of its proper divisors (32827440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25891264 is an equidigital number, since it uses as much as digits as its factorization.

25891264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57812 (or 57802 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 25891264 is about 5088.3459001919. The cubic root of 25891264 is about 295.8360426299.

The spelling of 25891264 in words is "twenty-five million, eight hundred ninety-one thousand, two hundred sixty-four".