55655216 has 20 divisors (see below), whose sum is σ = 112521072. Its totient is φ = 26617536.

The previous prime is 55655207. The next prime is 55655221. The reversal of 55655216 is 61255655.

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, 75251 + ... + 75986.

Almost surely, 2^55655216 is an apocalyptic number.

It is an amenable number.

55655216 is an abundant number, since it is smaller than the sum of its proper divisors (56865856).

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

55655216 is a wasteful number, since it uses less digits than its factorization.

55655216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151268 (or 151262 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The square root of 55655216 is about 7460.2423553126. The cubic root of 55655216 is about 381.7994433462.

The spelling of 55655216 in words is "fifty-five million, six hundred fifty-five thousand, two hundred sixteen".