55624064 has 16 divisors (see below), whose sum is σ = 110813820. Its totient is φ = 27811968.

The previous prime is 55624043. The next prime is 55624073. The reversal of 55624064 is 46042655.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 55624064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217154 + ... + 217409.

Almost surely, 2^55624064 is an apocalyptic number.

It is an amenable number.

55624064 is a deficient number, since it is larger than the sum of its proper divisors (55189756).

55624064 is an equidigital number, since it uses as much as digits as its factorization.

55624064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434577 (or 434565 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 55624064 is about 7458.1541952416. The cubic root of 55624064 is about 381.7281949414.

The spelling of 55624064 in words is "fifty-five million, six hundred twenty-four thousand, sixty-four".