54921888 has 144 divisors (see below), whose sum is σ = 185290560. Its totient is φ = 15676416.

The previous prime is 54921877. The next prime is 54921929. The reversal of 54921888 is 88812945.

It is a happy number.

54921888 is a `hidden beast` number, since 549 + 21 + 8 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53928 + ... + 54936.

It is an arithmetic number, because the mean of its divisors is an integer number (1286740).

Almost surely, 2^54921888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54921888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92645280).

54921888 is an abundant number, since it is smaller than the sum of its proper divisors (130368672).

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

54921888 is a wasteful number, since it uses less digits than its factorization.

54921888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1021 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 54921888 is about 7410.9303059737. The cubic root of 54921888 is about 380.1151267053.

The spelling of 54921888 in words is "fifty-four million, nine hundred twenty-one thousand, eight hundred eighty-eight".