55028244 has 12 divisors (see below), whose sum is σ = 128399264. Its totient is φ = 18342744.

The previous prime is 55028243. The next prime is 55028251. The reversal of 55028244 is 44282055.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55028243) 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, 2292832 + ... + 2292855.

Almost surely, 2^55028244 is an apocalyptic number.

It is an amenable number.

55028244 is an abundant number, since it is smaller than the sum of its proper divisors (73371020).

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

55028244 is a wasteful number, since it uses less digits than its factorization.

55028244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585694 (or 4585692 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 55028244 is about 7418.1024527840. The cubic root of 55028244 is about 380.3603322631.

The spelling of 55028244 in words is "fifty-five million, twenty-eight thousand, two hundred forty-four".