56521020472 has 32 divisors (see below), whose sum is σ = 121160049120. Its totient is φ = 24214579200.

The previous prime is 56521020467. The next prime is 56521020499. The reversal of 56521020472 is 27402012565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23313 + ... + 337024.

It is an arithmetic number, because the mean of its divisors is an integer number (3786251535).

Almost surely, 2^56521020472 is an apocalyptic number.

It is an amenable number.

56521020472 is an abundant number, since it is smaller than the sum of its proper divisors (64639028648).

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

56521020472 is a wasteful number, since it uses less digits than its factorization.

56521020472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363151 (or 363147 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 56521020472 in words is "fifty-six billion, five hundred twenty-one million, twenty thousand, four hundred seventy-two".