12562905252 has 12 divisors (see below), whose sum is σ = 29313445616. Its totient is φ = 4187635080.

The previous prime is 12562905221. The next prime is 12562905253. The reversal of 12562905252 is 25250926521.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 12562905252.

It is not an unprimeable number, because it can be changed into a prime (12562905253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523454374 + ... + 523454397.

Almost surely, 2^12562905252 is an apocalyptic number.

12562905252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12562905252 is an abundant number, since it is smaller than the sum of its proper divisors (16750540364).

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

12562905252 is a wasteful number, since it uses less digits than its factorization.

12562905252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046908778 (or 1046908776 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 12562905252 in words is "twelve billion, five hundred sixty-two million, nine hundred five thousand, two hundred fifty-two".