56552055657 has 4 divisors (see below), whose sum is σ = 75402740880. Its totient is φ = 37701370436.

The previous prime is 56552055649. The next prime is 56552055661. The reversal of 56552055657 is 75655025565.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56552055657 - 2³ = 56552055649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56552055647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9425342607 + ... + 9425342612.

It is an arithmetic number, because the mean of its divisors is an integer number (18850685220).

Almost surely, 2^56552055657 is an apocalyptic number.

It is an amenable number.

56552055657 is a deficient number, since it is larger than the sum of its proper divisors (18850685223).

56552055657 is a wasteful number, since it uses less digits than its factorization.

56552055657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18850685222.

The product of its (nonzero) digits is 7875000, while the sum is 51.

The spelling of 56552055657 in words is "fifty-six billion, five hundred fifty-two million, fifty-five thousand, six hundred fifty-seven".