55624543520 has 192 divisors, whose sum is σ = 162640348416. Its totient is φ = 17506160640.

The previous prime is 55624543493. The next prime is 55624543531. The reversal of 55624543520 is 2534542655.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2624807 + ... + 2645913.

It is an arithmetic number, because the mean of its divisors is an integer number (847085148).

Almost surely, 2^55624543520 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 55624543520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81320174208).

55624543520 is an abundant number, since it is smaller than the sum of its proper divisors (107015804896).

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

55624543520 is a wasteful number, since it uses less digits than its factorization.

55624543520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323 (or 21315 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 41.

The spelling of 55624543520 in words is "fifty-five billion, six hundred twenty-four million, five hundred forty-three thousand, five hundred twenty".