56015501000 has 64 divisors (see below), whose sum is σ = 135596214000. Its totient is φ = 21633561600.

The previous prime is 56015500993. The next prime is 56015501027. The reversal of 56015501000 is 10551065.

It can be written as a sum of positive squares in 8 ways, for example, as 1322195044 + 54693305956 = 36362^2 + 233866^2 .

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, 936785 + ... + 994784.

Almost surely, 2^56015501000 is an apocalyptic number.

56015501000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56015501000 is an abundant number, since it is smaller than the sum of its proper divisors (79580713000).

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

56015501000 is a wasteful number, since it uses less digits than its factorization.

56015501000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931619 (or 1931605 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The spelling of 56015501000 in words is "fifty-six billion, fifteen million, five hundred one thousand".