56552777655 has 32 divisors (see below), whose sum is σ = 99959823360. Its totient is φ = 27072439680.

The previous prime is 56552777647. The next prime is 56552777693. The reversal of 56552777655 is 55677725565.

It is not a de Polignac number, because 56552777655 - 2³ = 56552777647 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2156232 + ... + 2182301.

It is an arithmetic number, because the mean of its divisors is an integer number (3123744480).

Almost surely, 2^56552777655 is an apocalyptic number.

56552777655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56552777655 is a deficient number, since it is larger than the sum of its proper divisors (43407045705).

56552777655 is a wasteful number, since it uses less digits than its factorization.

56552777655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338631.

The product of its digits is 77175000, while the sum is 60.

The spelling of 56552777655 in words is "fifty-six billion, five hundred fifty-two million, seven hundred seventy-seven thousand, six hundred fifty-five".