56556424456 has 48 divisors (see below), whose sum is σ = 123429636540. Its totient is φ = 24224094720.

The previous prime is 56556424451. The next prime is 56556424469. The reversal of 56556424456 is 65442465565.

It can be written as a sum of positive squares in 2 ways, for example, as 55747932100 + 808492356 = 236110^2 + 28434^2 .

It is not an unprimeable number, because it can be changed into a prime (56556424451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 632716 + ... + 716548.

Almost surely, 2^56556424456 is an apocalyptic number.

56556424456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

56556424456 is an abundant number, since it is smaller than the sum of its proper divisors (66873212084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56556424456 is a wasteful number, since it uses less digits than its factorization.

56556424456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85574 (or 85563 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 52.

The spelling of 56556424456 in words is "fifty-six billion, five hundred fifty-six million, four hundred twenty-four thousand, four hundred fifty-six".