55715199892 has 24 divisors (see below), whose sum is σ = 106418918592. Its totient is φ = 25312344000.

The previous prime is 55715199887. The next prime is 55715199893. The reversal of 55715199892 is 29899151755.

It is a self number, because there is not a number n which added to its sum of digits gives 55715199892.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55715199893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229984 + ... + 405367.

It is an arithmetic number, because the mean of its divisors is an integer number (4434121608).

Almost surely, 2^55715199892 is an apocalyptic number.

It is an amenable number.

55715199892 is a deficient number, since it is larger than the sum of its proper divisors (50703718700).

55715199892 is a wasteful number, since it uses less digits than its factorization.

55715199892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637359 (or 637357 counting only the distinct ones).

The product of its digits is 10206000, while the sum is 61.

The spelling of 55715199892 in words is "fifty-five billion, seven hundred fifteen million, one hundred ninety-nine thousand, eight hundred ninety-two".