54138568 has 32 divisors (see below), whose sum is σ = 111352320. Its totient is φ = 24472000.

The previous prime is 54138559. The next prime is 54138583. The reversal of 54138568 is 86583145.

It is a self number, because there is not a number n which added to its sum of digits gives 54138568.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15198 + ... + 18418.

It is an arithmetic number, because the mean of its divisors is an integer number (3479760).

Almost surely, 2^54138568 is an apocalyptic number.

It is an amenable number.

54138568 is an abundant number, since it is smaller than the sum of its proper divisors (57213752).

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

54138568 is a wasteful number, since it uses less digits than its factorization.

54138568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429 (or 3425 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 54138568 is about 7357.8915458166. The cubic root of 54138568 is about 378.2993438946.

The spelling of 54138568 in words is "fifty-four million, one hundred thirty-eight thousand, five hundred sixty-eight".