55560624 has 160 divisors (see below), whose sum is σ = 177417216. Its totient is φ = 14622720.

The previous prime is 55560613. The next prime is 55560629. The reversal of 55560624 is 42606555.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55560629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 405484 + ... + 405620.

Almost surely, 2^55560624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55560624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88708608).

55560624 is an abundant number, since it is smaller than the sum of its proper divisors (121856592).

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

55560624 is a wasteful number, since it uses less digits than its factorization.

55560624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 55560624 is about 7453.8999188344. The cubic root of 55560624 is about 381.5830176727.

The spelling of 55560624 in words is "fifty-five million, five hundred sixty thousand, six hundred twenty-four".