55656015506550 has 72 divisors (see below), whose sum is σ = 155067278793336. Its totient is φ = 14841604131840.

The previous prime is 55656015506543. The next prime is 55656015506621. The reversal of 55656015506550 is 5560551065655.

55656015506550 is a `hidden beast` number, since 5 + 5 + 6 + 560 + 15 + 5 + 0 + 65 + 5 + 0 = 666.

55656015506550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2290358859 + ... + 2290383158.

It is an arithmetic number, because the mean of its divisors is an integer number (2153712205463).

Almost surely, 2^{55656015506550} is an apocalyptic number.

55656015506550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55656015506550 is an abundant number, since it is smaller than the sum of its proper divisors (99411263286786).

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

55656015506550 is a wasteful number, since it uses less digits than its factorization.

55656015506550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4580742044 (or 4580742027 counting only the distinct ones).

The product of its (nonzero) digits is 16875000, while the sum is 54.

The spelling of 55656015506550 in words is "fifty-five trillion, six hundred fifty-six billion, fifteen million, five hundred six thousand, five hundred fifty".