56430731900 has 18 divisors (see below), whose sum is σ = 122454688440. Its totient is φ = 22572292720.

The previous prime is 56430731887. The next prime is 56430731941. The reversal of 56430731900 is 913703465.

It is a happy number.

It is a super-2 number, since 2×56430731900² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282153560 + ... + 282153759.

Almost surely, 2^56430731900 is an apocalyptic number.

56430731900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56430731900 is an abundant number, since it is smaller than the sum of its proper divisors (66023956540).

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

56430731900 is a wasteful number, since it uses less digits than its factorization.

56430731900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564307333 (or 564307326 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 56430731900 in words is "fifty-six billion, four hundred thirty million, seven hundred thirty-one thousand, nine hundred".