56740208757 has 4 divisors (see below), whose sum is σ = 75653611680. Its totient is φ = 37826805836.

The previous prime is 56740208747. The next prime is 56740208783. The reversal of 56740208757 is 75780204765.

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 56740208757 - 2¹¹ = 56740206709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56740208747) 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, 9456701457 + ... + 9456701462.

It is an arithmetic number, because the mean of its divisors is an integer number (18913402920).

Almost surely, 2^56740208757 is an apocalyptic number.

It is an amenable number.

56740208757 is a deficient number, since it is larger than the sum of its proper divisors (18913402923).

56740208757 is a wasteful number, since it uses less digits than its factorization.

56740208757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18913402922.

The product of its (nonzero) digits is 3292800, while the sum is 51.

The spelling of 56740208757 in words is "fifty-six billion, seven hundred forty million, two hundred eight thousand, seven hundred fifty-seven".