54931872 has 24 divisors (see below), whose sum is σ = 144196416. Its totient is φ = 18310592.

The previous prime is 54931867. The next prime is 54931883. The reversal of 54931872 is 27813945.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×54931872² = 6035021122848768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 54931872.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286008 + ... + 286199.

It is an arithmetic number, because the mean of its divisors is an integer number (6008184).

Almost surely, 2^54931872 is an apocalyptic number.

It is an amenable number.

54931872 is an abundant number, since it is smaller than the sum of its proper divisors (89264544).

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

54931872 is a wasteful number, since it uses less digits than its factorization.

54931872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572220 (or 572212 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 54931872 is about 7411.6038750057. The cubic root of 54931872 is about 380.1381584426.

The spelling of 54931872 in words is "fifty-four million, nine hundred thirty-one thousand, eight hundred seventy-two".