25212102256 has 20 divisors (see below), whose sum is σ = 53289216504. Its totient is φ = 11460046400.

The previous prime is 25212102221. The next prime is 25212102277. The reversal of 25212102256 is 65220121252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71625115 + ... + 71625466.

Almost surely, 2^25212102256 is an apocalyptic number.

It is an amenable number.

25212102256 is an abundant number, since it is smaller than the sum of its proper divisors (28077114248).

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

25212102256 is a wasteful number, since it uses less digits than its factorization.

25212102256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143250600 (or 143250594 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 25212102256 in words is "twenty-five billion, two hundred twelve million, one hundred two thousand, two hundred fifty-six".