55616142492 has 18 divisors (see below), whose sum is σ = 140585249168. Its totient is φ = 18538714152.

The previous prime is 55616142457. The next prime is 55616142499. The reversal of 55616142492 is 29424161655.

55616142492 is a `hidden beast` number, since 5 + 5 + 6 + 1 + 614 + 24 + 9 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55616142499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 772446388 + ... + 772446459.

Almost surely, 2^55616142492 is an apocalyptic number.

It is an amenable number.

55616142492 is an abundant number, since it is smaller than the sum of its proper divisors (84969106676).

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

55616142492 is a wasteful number, since it uses less digits than its factorization.

55616142492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544892857 (or 1544892852 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 55616142492 in words is "fifty-five billion, six hundred sixteen million, one hundred forty-two thousand, four hundred ninety-two".