54136818 has 24 divisors (see below), whose sum is σ = 117831168. Its totient is φ = 17963352.

The previous prime is 54136813. The next prime is 54136843. The reversal of 54136818 is 81863145.

54136818 is a `hidden beast` number, since 541 + 36 + 81 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54136813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2730 + ... + 10757.

It is an arithmetic number, because the mean of its divisors is an integer number (4909632).

Almost surely, 2^54136818 is an apocalyptic number.

54136818 is an abundant number, since it is smaller than the sum of its proper divisors (63694350).

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

54136818 is a wasteful number, since it uses less digits than its factorization.

54136818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13718 (or 13715 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 54136818 is about 7357.7726249185. The cubic root of 54136818 is about 378.2952677433.

The spelling of 54136818 in words is "fifty-four million, one hundred thirty-six thousand, eight hundred eighteen".