56321550564 has 48 divisors (see below), whose sum is σ = 137424688128. Its totient is φ = 17919101728.

The previous prime is 56321550559. The next prime is 56321550577. The reversal of 56321550564 is 46505512365.

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, 89592 + ... + 347375.

It is an arithmetic number, because the mean of its divisors is an integer number (2863014336).

Almost surely, 2^56321550564 is an apocalyptic number.

It is an amenable number.

56321550564 is an abundant number, since it is smaller than the sum of its proper divisors (81103137564).

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

56321550564 is a wasteful number, since it uses less digits than its factorization.

56321550564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437464 (or 437462 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 42.

The spelling of 56321550564 in words is "fifty-six billion, three hundred twenty-one million, five hundred fifty thousand, five hundred sixty-four".