56555067506 has 64 divisors (see below), whose sum is σ = 100297236480. Its totient is φ = 23411747520.

The previous prime is 56555067497. The next prime is 56555067511. The reversal of 56555067506 is 60576055565.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53202731 + ... + 53203793.

It is an arithmetic number, because the mean of its divisors is an integer number (1567144320).

Almost surely, 2^56555067506 is an apocalyptic number.

56555067506 is a deficient number, since it is larger than the sum of its proper divisors (43742168974).

56555067506 is a wasteful number, since it uses less digits than its factorization.

56555067506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759.

The product of its (nonzero) digits is 4725000, while the sum is 50.

The spelling of 56555067506 in words is "fifty-six billion, five hundred fifty-five million, sixty-seven thousand, five hundred six".