56457558855 has 48 divisors (see below), whose sum is σ = 100172666880. Its totient is φ = 29399557824.

The previous prime is 56457558823. The next prime is 56457558877. The reversal of 56457558855 is 55885575465.

It is a happy number.

56457558855 is a `hidden beast` number, since 5 + 6 + 4 + 575 + 5 + 8 + 8 + 55 = 666.

It is not a de Polignac number, because 56457558855 - 2⁵ = 56457558823 is a prime.

It is a super-2 number, since 2×56457558855² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56457558792 and 56457558801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10212102 + ... + 10217628.

It is an arithmetic number, because the mean of its divisors is an integer number (2086930560).

Almost surely, 2^56457558855 is an apocalyptic number.

56457558855 is a deficient number, since it is larger than the sum of its proper divisors (43715108025).

56457558855 is a wasteful number, since it uses less digits than its factorization.

56457558855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10860 (or 10857 counting only the distinct ones).

The product of its digits is 168000000, while the sum is 63.

The spelling of 56457558855 in words is "fifty-six billion, four hundred fifty-seven million, five hundred fifty-eight thousand, eight hundred fifty-five".