54538686 has 24 divisors (see below), whose sum is σ = 125118864. Its totient is φ = 17110080.

The previous prime is 54538657. The next prime is 54538709. The reversal of 54538686 is 68683545.

54538686 is a `hidden beast` number, since 54 + 538 + 68 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88810 + ... + 89421.

It is an arithmetic number, because the mean of its divisors is an integer number (5213286).

Almost surely, 2^54538686 is an apocalyptic number.

54538686 is an abundant number, since it is smaller than the sum of its proper divisors (70580178).

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

54538686 is a wasteful number, since it uses less digits than its factorization.

54538686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178256 (or 178253 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 54538686 is about 7385.0312118501. The cubic root of 54538686 is about 379.2290138965.

The spelling of 54538686 in words is "fifty-four million, five hundred thirty-eight thousand, six hundred eighty-six".