56555256707 has 16 divisors (see below), whose sum is σ = 58098539520. Its totient is φ = 55032321888.

The previous prime is 56555256671. The next prime is 56555256757. The reversal of 56555256707 is 70765255565.

It is a cyclic number.

It is not a de Polignac number, because 56555256707 - 2⁸ = 56555256451 is a prime.

It is a super-2 number, since 2×56555256707² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56555256757) 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, 9889613 + ... + 9895329.

It is an arithmetic number, because the mean of its divisors is an integer number (3631158720).

Almost surely, 2^56555256707 is an apocalyptic number.

56555256707 is a deficient number, since it is larger than the sum of its proper divisors (1543282813).

56555256707 is a wasteful number, since it uses less digits than its factorization.

56555256707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7450.

The product of its (nonzero) digits is 11025000, while the sum is 53.

The spelling of 56555256707 in words is "fifty-six billion, five hundred fifty-five million, two hundred fifty-six thousand, seven hundred seven".