55531324560 has 80 divisors (see below), whose sum is σ = 172690393536. Its totient is φ = 14761618944.

The previous prime is 55531324559. The next prime is 55531324577. The reversal of 55531324560 is 6542313555.

55531324560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288874 + ... + 441033.

Almost surely, 2^55531324560 is an apocalyptic number.

It is an amenable number.

55531324560 is an abundant number, since it is smaller than the sum of its proper divisors (117159068976).

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

55531324560 is a wasteful number, since it uses less digits than its factorization.

55531324560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730240 (or 730234 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 55531324560 in words is "fifty-five billion, five hundred thirty-one million, three hundred twenty-four thousand, five hundred sixty".