55830771984 has 40 divisors (see below), whose sum is σ = 155324072512. Its totient is φ = 17178698880.

The previous prime is 55830771943. The next prime is 55830771991. The reversal of 55830771984 is 48917703855.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44735572 + ... + 44736819.

Almost surely, 2^55830771984 is an apocalyptic number.

It is an amenable number.

55830771984 is an abundant number, since it is smaller than the sum of its proper divisors (99493300528).

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

55830771984 is a wasteful number, since it uses less digits than its factorization.

55830771984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89472415 (or 89472409 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 57.

The spelling of 55830771984 in words is "fifty-five billion, eight hundred thirty million, seven hundred seventy-one thousand, nine hundred eighty-four".