55874897916 has 12 divisors (see below), whose sum is σ = 130374761832. Its totient is φ = 18624965968.

The previous prime is 55874897887. The next prime is 55874897927. The reversal of 55874897916 is 61979847855.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×55874897916² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2328120735 + ... + 2328120758.

It is an arithmetic number, because the mean of its divisors is an integer number (10864563486).

Almost surely, 2^55874897916 is an apocalyptic number.

It is an amenable number.

55874897916 is an abundant number, since it is smaller than the sum of its proper divisors (74499863916).

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

55874897916 is a wasteful number, since it uses less digits than its factorization.

55874897916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4656241500 (or 4656241498 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 69.

The spelling of 55874897916 in words is "fifty-five billion, eight hundred seventy-four million, eight hundred ninety-seven thousand, nine hundred sixteen".