56550565506 has 64 divisors (see below), whose sum is σ = 116502364800. Its totient is φ = 18291726336.

The previous prime is 56550565493. The next prime is 56550565517. The reversal of 56550565506 is 60556505565.

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, 31609260 + ... + 31611048.

It is an arithmetic number, because the mean of its divisors is an integer number (1820349450).

Almost surely, 2^56550565506 is an apocalyptic number.

56550565506 is an abundant number, since it is smaller than the sum of its proper divisors (59951799294).

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

56550565506 is a wasteful number, since it uses less digits than its factorization.

56550565506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883.

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 56550565506 in words is "fifty-six billion, five hundred fifty million, five hundred sixty-five thousand, five hundred six".