54921928 has 16 divisors (see below), whose sum is σ = 103383180. Its totient is φ = 27353088.

The previous prime is 54921877. The next prime is 54921929. The reversal of 54921928 is 82912945.

It can be written as a sum of positive squares in 2 ways, for example, as 34833604 + 20088324 = 5902^2 + 4482^2 .

It is not an unprimeable number, because it can be changed into a prime (54921929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11301 + ... + 15412.

Almost surely, 2^54921928 is an apocalyptic number.

It is an amenable number.

54921928 is a deficient number, since it is larger than the sum of its proper divisors (48461252).

54921928 is a wasteful number, since it uses less digits than its factorization.

54921928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26976 (or 26972 counting only the distinct ones).

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

The square root of 54921928 is about 7410.9330046898. The cubic root of 54921928 is about 380.1152189855.

The spelling of 54921928 in words is "fifty-four million, nine hundred twenty-one thousand, nine hundred twenty-eight".