25864012 has 12 divisors (see below), whose sum is σ = 45318280. Its totient is φ = 12915936.

The previous prime is 25864001. The next prime is 25864031. The reversal of 25864012 is 21046852.

It is a super-2 number, since 2×25864012² = 1337894233472288, which contains 22 as substring.

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, 64 + ... + 7192.

Almost surely, 2^25864012 is an apocalyptic number.

It is an amenable number.

25864012 is a deficient number, since it is larger than the sum of its proper divisors (19454268).

25864012 is a wasteful number, since it uses less digits than its factorization.

25864012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8040 (or 8038 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 25864012 is about 5085.6673111795. The cubic root of 25864012 is about 295.7322115448.

The spelling of 25864012 in words is "twenty-five million, eight hundred sixty-four thousand, twelve".