55038228 has 48 divisors (see below), whose sum is σ = 147141120. Its totient is φ = 15685344.

The previous prime is 55038173. The next prime is 55038239. The reversal of 55038228 is 82283055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53503 + ... + 54521.

It is an arithmetic number, because the mean of its divisors is an integer number (3065440).

Almost surely, 2^55038228 is an apocalyptic number.

It is an amenable number.

55038228 is an abundant number, since it is smaller than the sum of its proper divisors (92102892).

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

55038228 is a wasteful number, since it uses less digits than its factorization.

55038228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676 (or 1674 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 55038228 is about 7418.7753706390. The cubic root of 55038228 is about 380.3833343170.

It can be divided in two parts, 5503 and 8228, that added together give a palindrome (13731).

The spelling of 55038228 in words is "fifty-five million, thirty-eight thousand, two hundred twenty-eight".