54220028 has 12 divisors (see below), whose sum is σ = 94941672. Its totient is φ = 27093840.

The previous prime is 54219973. The next prime is 54220031. The reversal of 54220028 is 82002245.

It is a super-2 number, since 2×54220028² = 5879622872641568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 54219985 and 54220012.

It is a congruent number.

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, 6626 + ... + 12342.

It is an arithmetic number, because the mean of its divisors is an integer number (7911806).

Almost surely, 2^54220028 is an apocalyptic number.

It is an amenable number.

54220028 is a deficient number, since it is larger than the sum of its proper divisors (40721644).

54220028 is a wasteful number, since it uses less digits than its factorization.

54220028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8092 (or 8090 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 54220028 is about 7363.4250182914. The cubic root of 54220028 is about 378.4889857871.

The spelling of 54220028 in words is "fifty-four million, two hundred twenty thousand, twenty-eight".