55902228 has 24 divisors (see below), whose sum is σ = 130941888. Its totient is φ = 18562176.

The previous prime is 55902221. The next prime is 55902233. The reversal of 55902228 is 82220955.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55902221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5701 + ... + 12012.

It is an arithmetic number, because the mean of its divisors is an integer number (5455912).

Almost surely, 2^55902228 is an apocalyptic number.

It is an amenable number.

55902228 is an abundant number, since it is smaller than the sum of its proper divisors (75039660).

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

55902228 is a wasteful number, since it uses less digits than its factorization.

55902228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17983 (or 17981 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 55902228 is about 7476.7792531276. The cubic root of 55902228 is about 382.3634507676.

The spelling of 55902228 in words is "fifty-five million, nine hundred two thousand, two hundred twenty-eight".