51562565256 has 64 divisors (see below), whose sum is σ = 137990880000. Its totient is φ = 16006925376.

The previous prime is 51562565233. The next prime is 51562565269. The reversal of 51562565256 is 65256526515.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 931366 + ... + 985173.

It is an arithmetic number, because the mean of its divisors is an integer number (2156107500).

Almost surely, 2^51562565256 is an apocalyptic number.

It is an amenable number.

51562565256 is an abundant number, since it is smaller than the sum of its proper divisors (86428314744).

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

51562565256 is a wasteful number, since it uses less digits than its factorization.

51562565256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916626 (or 1916622 counting only the distinct ones).

The product of its digits is 2700000, while the sum is 48.

The spelling of 51562565256 in words is "fifty-one billion, five hundred sixty-two million, five hundred sixty-five thousand, two hundred fifty-six".