56711120257 has 16 divisors (see below), whose sum is σ = 65167441920. Its totient is φ = 48808645200.

The previous prime is 56711120243. The next prime is 56711120281. The reversal of 56711120257 is 75202111765.

It is a cyclic number.

It is not a de Polignac number, because 56711120257 - 2³¹ = 54563636609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56711120227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215208 + ... + 399670.

It is an arithmetic number, because the mean of its divisors is an integer number (4072965120).

Almost surely, 2^56711120257 is an apocalyptic number.

It is an amenable number.

56711120257 is a deficient number, since it is larger than the sum of its proper divisors (8456321663).

56711120257 is a wasteful number, since it uses less digits than its factorization.

56711120257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185964.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 56711120257 in words is "fifty-six billion, seven hundred eleven million, one hundred twenty thousand, two hundred fifty-seven".