55549391592 has 16 divisors (see below), whose sum is σ = 138873479040. Its totient is φ = 18516463856.

The previous prime is 55549391501. The next prime is 55549391647. The reversal of 55549391592 is 29519394555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157278968 + ... + 1157279015.

It is an arithmetic number, because the mean of its divisors is an integer number (8679592440).

Almost surely, 2^55549391592 is an apocalyptic number.

It is an amenable number.

55549391592 is an abundant number, since it is smaller than the sum of its proper divisors (83324087448).

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

55549391592 is a wasteful number, since it uses less digits than its factorization.

55549391592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314557992 (or 2314557988 counting only the distinct ones).

The product of its digits is 10935000, while the sum is 57.

The spelling of 55549391592 in words is "fifty-five billion, five hundred forty-nine million, three hundred ninety-one thousand, five hundred ninety-two".