55590528 has 64 divisors (see below), whose sum is σ = 168765120. Its totient is φ = 15882240.

The previous prime is 55590497. The next prime is 55590541. The reversal of 55590528 is 82509555.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7653 + ... + 13028.

It is an arithmetic number, because the mean of its divisors is an integer number (2636955).

Almost surely, 2^55590528 is an apocalyptic number.

It is an amenable number.

55590528 is an abundant number, since it is smaller than the sum of its proper divisors (113174592).

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

55590528 is a wasteful number, since it uses less digits than its factorization.

55590528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20705 (or 20693 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 39.

The square root of 55590528 is about 7455.9055788013. The cubic root of 55590528 is about 381.6514643000.

The spelling of 55590528 in words is "fifty-five million, five hundred ninety thousand, five hundred twenty-eight".