55605560520 has 32 divisors (see below), whose sum is σ = 166816681920. Its totient is φ = 14828149440.

The previous prime is 55605560471. The next prime is 55605560557. The reversal of 55605560520 is 2506550655.

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, 231689716 + ... + 231689955.

It is an arithmetic number, because the mean of its divisors is an integer number (5213021310).

Almost surely, 2^55605560520 is an apocalyptic number.

It is an amenable number.

55605560520 is an abundant number, since it is smaller than the sum of its proper divisors (111211121400).

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

55605560520 is a wasteful number, since it uses less digits than its factorization.

55605560520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463379685 (or 463379681 counting only the distinct ones).

The product of its (nonzero) digits is 225000, while the sum is 39.

The spelling of 55605560520 in words is "fifty-five billion, six hundred five million, five hundred sixty thousand, five hundred twenty".