56010505657 has 4 divisors (see below), whose sum is σ = 57313075600. Its totient is φ = 54707935716.

The previous prime is 56010505643. The next prime is 56010505703. The reversal of 56010505657 is 75650501065.

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 56010505657 - 2¹⁹ = 56009981369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56010505757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651284907 + ... + 651284992.

It is an arithmetic number, because the mean of its divisors is an integer number (14328268900).

Almost surely, 2^56010505657 is an apocalyptic number.

It is an amenable number.

56010505657 is a deficient number, since it is larger than the sum of its proper divisors (1302569943).

56010505657 is a wasteful number, since it uses less digits than its factorization.

56010505657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302569942.

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 56010505657 in words is "fifty-six billion, ten million, five hundred five thousand, six hundred fifty-seven".