55113228 has 36 divisors (see below), whose sum is σ = 139867728. Its totient is φ = 18298080.

The previous prime is 55113211. The next prime is 55113251. The reversal of 55113228 is 82231155.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6558 + ... + 12378.

Almost surely, 2^55113228 is an apocalyptic number.

It is an amenable number.

55113228 is an abundant number, since it is smaller than the sum of its proper divisors (84754500).

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

55113228 is a wasteful number, since it uses less digits than its factorization.

55113228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6094 (or 6089 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 55113228 is about 7423.8283924132. The cubic root of 55113228 is about 380.5560373170.

The spelling of 55113228 in words is "fifty-five million, one hundred thirteen thousand, two hundred twenty-eight".