25758280256 has 28 divisors (see below), whose sum is σ = 51378951852. Its totient is φ = 12812402688.

The previous prime is 25758280241. The next prime is 25758280309. The reversal of 25758280256 is 65208285752.

It can be written as a sum of positive squares in 2 ways, for example, as 7582926400 + 18175353856 = 87080^2 + 134816^2 .

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, 1030325 + ... + 1055028.

Almost surely, 2^25758280256 is an apocalyptic number.

It is an amenable number.

25758280256 is a deficient number, since it is larger than the sum of its proper divisors (25620671596).

25758280256 is a wasteful number, since it uses less digits than its factorization.

25758280256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085558 (or 2085548 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 25758280256 in words is "twenty-five billion, seven hundred fifty-eight million, two hundred eighty thousand, two hundred fifty-six".