56617552057 has 8 divisors (see below), whose sum is σ = 63757009152. Its totient is φ = 49810162800.

The previous prime is 56617552027. The next prime is 56617552067. The reversal of 56617552057 is 75025571665.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56617552057 - 2³⁵ = 22257813689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56617552057.

It is not an unprimeable number, because it can be changed into a prime (56617552027) 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 7 ways as a sum of consecutive naturals, for example, 83016598 + ... + 83017279.

It is an arithmetic number, because the mean of its divisors is an integer number (7969626144).

Almost surely, 2^56617552057 is an apocalyptic number.

It is an amenable number.

56617552057 is a deficient number, since it is larger than the sum of its proper divisors (7139457095).

56617552057 is a wasteful number, since it uses less digits than its factorization.

56617552057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166033919.

The product of its (nonzero) digits is 2205000, while the sum is 49.

The spelling of 56617552057 in words is "fifty-six billion, six hundred seventeen million, five hundred fifty-two thousand, fifty-seven".