56211550657 has 8 divisors (see below), whose sum is σ = 58506632640. Its totient is φ = 53940252240.

The previous prime is 56211550643. The next prime is 56211550679. The reversal of 56211550657 is 75605511265.

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 56211550657 - 2¹¹ = 56211548609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56211550627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5941069 + ... + 5950522.

It is an arithmetic number, because the mean of its divisors is an integer number (7313329080).

Almost surely, 2^56211550657 is an apocalyptic number.

It is an amenable number.

56211550657 is a deficient number, since it is larger than the sum of its proper divisors (2295081983).

56211550657 is a wasteful number, since it uses less digits than its factorization.

56211550657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11891783.

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 56211550657 in words is "fifty-six billion, two hundred eleven million, five hundred fifty thousand, six hundred fifty-seven".