25856884704256 has 44 divisors (see below), whose sum is σ = 53355890176000. Its totient is φ = 12511395809280.

The previous prime is 25856884704251. The next prime is 25856884704319. The reversal of 25856884704256 is 65240748865852.

It is not an unprimeable number, because it can be changed into a prime (25856884704251) 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, 407240256 + ... + 407303743.

Almost surely, 2^{25856884704256} is an apocalyptic number.

It is an amenable number.

25856884704256 is an abundant number, since it is smaller than the sum of its proper divisors (27499005471744).

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

25856884704256 is an equidigital number, since it uses as much as digits as its factorization.

25856884704256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814544050 (or 814544032 counting only the distinct ones).

The product of its (nonzero) digits is 1032192000, while the sum is 70.

The spelling of 25856884704256 in words is "twenty-five trillion, eight hundred fifty-six billion, eight hundred eighty-four million, seven hundred four thousand, two hundred fifty-six".