55568428 has 12 divisors (see below), whose sum is σ = 98106120. Its totient is φ = 27538112.

The previous prime is 55568419. The next prime is 55568431. The reversal of 55568428 is 82486555.

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, 61018 + ... + 61921.

It is an arithmetic number, because the mean of its divisors is an integer number (8175510).

Almost surely, 2^55568428 is an apocalyptic number.

It is an amenable number.

55568428 is a deficient number, since it is larger than the sum of its proper divisors (42537692).

55568428 is a wasteful number, since it uses less digits than its factorization.

55568428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123056 (or 123054 counting only the distinct ones).

The product of its digits is 384000, while the sum is 43.

The square root of 55568428 is about 7454.4233848099. The cubic root of 55568428 is about 381.6008824496.

The spelling of 55568428 in words is "fifty-five million, five hundred sixty-eight thousand, four hundred twenty-eight".