55988979539 has 4 divisors (see below), whose sum is σ = 55990176624. Its totient is φ = 55987782456.

The previous prime is 55988979533. The next prime is 55988979551. The reversal of 55988979539 is 93597988955.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55988979539 - 2⁴ = 55988979523 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55988979539.

It is not an unprimeable number, because it can be changed into a prime (55988979533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525407 + ... + 622920.

It is an arithmetic number, because the mean of its divisors is an integer number (13997544156).

Almost surely, 2^55988979539 is an apocalyptic number.

55988979539 is a deficient number, since it is larger than the sum of its proper divisors (1197085).

55988979539 is a wasteful number, since it uses less digits than its factorization.

55988979539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197084.

The product of its digits is 1102248000, while the sum is 77.

The spelling of 55988979539 in words is "fifty-five billion, nine hundred eighty-eight million, nine hundred seventy-nine thousand, five hundred thirty-nine".