25312606256 has 40 divisors (see below), whose sum is σ = 56060057760. Its totient is φ = 10846185984.

The previous prime is 25312606237. The next prime is 25312606273. The reversal of 25312606256 is 65260621352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663410 + ... + 700526.

It is an arithmetic number, because the mean of its divisors is an integer number (1401501444).

Almost surely, 2^25312606256 is an apocalyptic number.

It is an amenable number.

25312606256 is an abundant number, since it is smaller than the sum of its proper divisors (30747451504).

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

25312606256 is a wasteful number, since it uses less digits than its factorization.

25312606256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43221 (or 43215 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 25312606256 in words is "twenty-five billion, three hundred twelve million, six hundred six thousand, two hundred fifty-six".