56837225816 has 24 divisors (see below), whose sum is σ = 123968950020. Its totient is φ = 24358810896.

The previous prime is 56837225777. The next prime is 56837225839. The reversal of 56837225816 is 61852273865.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72496070 + ... + 72496853.

Almost surely, 2^56837225816 is an apocalyptic number.

56837225816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56837225816 is an abundant number, since it is smaller than the sum of its proper divisors (67131724204).

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

56837225816 is a wasteful number, since it uses less digits than its factorization.

56837225816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144992943 (or 144992932 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 53.

The spelling of 56837225816 in words is "fifty-six billion, eight hundred thirty-seven million, two hundred twenty-five thousand, eight hundred sixteen".