55586028 has 12 divisors (see below), whose sum is σ = 129700760. Its totient is φ = 18528672.

The previous prime is 55586021. The next prime is 55586033. The reversal of 55586028 is 82068555.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (55586021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316073 + ... + 2316096.

Almost surely, 2^55586028 is an apocalyptic number.

It is an amenable number.

55586028 is an abundant number, since it is smaller than the sum of its proper divisors (74114732).

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

55586028 is a wasteful number, since it uses less digits than its factorization.

55586028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632176 (or 4632174 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 39.

The square root of 55586028 is about 7455.6037984861. The cubic root of 55586028 is about 381.6411659153.

The spelling of 55586028 in words is "fifty-five million, five hundred eighty-six thousand, twenty-eight".