55706831904 has 24 divisors (see below), whose sum is σ = 146230434000. Its totient is φ = 18568943936.

The previous prime is 55706831893. The next prime is 55706831911. The reversal of 55706831904 is 40913860755.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×55706831904² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290139654 + ... + 290139845.

It is an arithmetic number, because the mean of its divisors is an integer number (6092934750).

Almost surely, 2^55706831904 is an apocalyptic number.

It is an amenable number.

55706831904 is an abundant number, since it is smaller than the sum of its proper divisors (90523602096).

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

55706831904 is a wasteful number, since it uses less digits than its factorization.

55706831904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580279512 (or 580279504 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 55706831904 in words is "fifty-five billion, seven hundred six million, eight hundred thirty-one thousand, nine hundred four".