56554863123 has 24 divisors (see below), whose sum is σ = 83689575424. Its totient is φ = 33942878640.

The previous prime is 56554863103. The next prime is 56554863143. The reversal of 56554863123 is 32136845565.

It is an interprime number because it is at equal distance from previous prime (56554863103) and next prime (56554863143).

It is not a de Polignac number, because 56554863123 - 2¹⁰ = 56554862099 is a prime.

It is a super-2 number, since 2×56554863123² (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 (56554863103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 718915 + ... + 793692.

Almost surely, 2^56554863123 is an apocalyptic number.

56554863123 is a deficient number, since it is larger than the sum of its proper divisors (27134712301).

56554863123 is a wasteful number, since it uses less digits than its factorization.

56554863123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512735 (or 1512724 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 48.

The spelling of 56554863123 in words is "fifty-six billion, five hundred fifty-four million, eight hundred sixty-three thousand, one hundred twenty-three".