25712512 has 32 divisors (see below), whose sum is σ = 58543920. Its totient is φ = 11019264.

The previous prime is 25712509. The next prime is 25712539. The reversal of 25712512 is 21521752.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×25712512² = 1322266546700288, which contains 22 as substring.

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, 13453 + ... + 15244.

Almost surely, 2^25712512 is an apocalyptic number.

It is an amenable number.

25712512 is an abundant number, since it is smaller than the sum of its proper divisors (32831408).

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

25712512 is an equidigital number, since it uses as much as digits as its factorization.

25712512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28718 (or 28706 counting only the distinct ones).

The product of its digits is 1400, while the sum is 25.

The square root of 25712512 is about 5070.7506347680. The cubic root of 25712512 is about 295.1536573820.

It can be divided in two parts, 257 and 12512, that added together give a square (12769 = 113²).

The spelling of 25712512 in words is "twenty-five million, seven hundred twelve thousand, five hundred twelve".