55656505560 has 64 divisors (see below), whose sum is σ = 171482220000. Its totient is φ = 14440605696.

The previous prime is 55656505559. The next prime is 55656505603. The reversal of 55656505560 is 6550565655.

55656505560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55656505560² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 6263185 + ... + 6272064.

Almost surely, 2^55656505560 is an apocalyptic number.

It is an amenable number.

55656505560 is an abundant number, since it is smaller than the sum of its proper divisors (115825714440).

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

55656505560 is a wasteful number, since it uses less digits than its factorization.

55656505560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12535300 (or 12535296 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 48.

The spelling of 55656505560 in words is "fifty-five billion, six hundred fifty-six million, five hundred five thousand, five hundred sixty".