54189904 has 40 divisors (see below), whose sum is σ = 108564480. Its totient is φ = 26183808.

The previous prime is 54189901. The next prime is 54189911. The reversal of 54189904 is 40998145.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54189901) 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, 141297 + ... + 141679.

It is an arithmetic number, because the mean of its divisors is an integer number (2714112).

Almost surely, 2^54189904 is an apocalyptic number.

It is an amenable number.

54189904 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

54189904 is a wasteful number, since it uses less digits than its factorization.

54189904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 54189904 is about 7361.3792185976. The cubic root of 54189904 is about 378.4188781485.

The spelling of 54189904 in words is "fifty-four million, one hundred eighty-nine thousand, nine hundred four".