25510202256 has 160 divisors (see below), whose sum is σ = 86487321600. Its totient is φ = 6277271040.

The previous prime is 25510202243. The next prime is 25510202273. The reversal of 25510202256 is 65220201552.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111411 + ... + 251858.

It is an arithmetic number, because the mean of its divisors is an integer number (540545760).

Almost surely, 2^25510202256 is an apocalyptic number.

It is an amenable number.

25510202256 is an abundant number, since it is smaller than the sum of its proper divisors (60977119344).

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

25510202256 is a wasteful number, since it uses less digits than its factorization.

25510202256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363317 (or 363311 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 25510202256 in words is "twenty-five billion, five hundred ten million, two hundred two thousand, two hundred fifty-six".