56455555506 has 24 divisors (see below), whose sum is σ = 131345578800. Its totient is φ = 16130158632.

The previous prime is 56455555469. The next prime is 56455555511. The reversal of 56455555506 is 60555555465.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96012556 + ... + 96013143.

It is an arithmetic number, because the mean of its divisors is an integer number (5472732450).

Almost surely, 2^56455555506 is an apocalyptic number.

56455555506 is an abundant number, since it is smaller than the sum of its proper divisors (74890023294).

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

56455555506 is a wasteful number, since it uses less digits than its factorization.

56455555506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192025718 (or 192025711 counting only the distinct ones).

The product of its (nonzero) digits is 11250000, while the sum is 51.

The spelling of 56455555506 in words is "fifty-six billion, four hundred fifty-five million, five hundred fifty-five thousand, five hundred six".