55668328 has 16 divisors (see below), whose sum is σ = 109872000. Its totient is φ = 26369136.

The previous prime is 55668311. The next prime is 55668373. The reversal of 55668328 is 82386655.

It is a happy number.

55668328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182968 + ... + 183271.

It is an arithmetic number, because the mean of its divisors is an integer number (6867000).

Almost surely, 2^55668328 is an apocalyptic number.

It is an amenable number.

55668328 is a deficient number, since it is larger than the sum of its proper divisors (54203672).

55668328 is a wasteful number, since it uses less digits than its factorization.

55668328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366264 (or 366260 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The square root of 55668328 is about 7461.1210953851. The cubic root of 55668328 is about 381.8294241313.

The spelling of 55668328 in words is "fifty-five million, six hundred sixty-eight thousand, three hundred twenty-eight".