56550615055 has 48 divisors (see below), whose sum is σ = 75315240000. Its totient is φ = 40730342400.

The previous prime is 56550615049. The next prime is 56550615071. The reversal of 56550615055 is 55051605565.

It is a de Polignac number, because none of the positive numbers 2^k-56550615055 is a prime.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 29014221 + ... + 29016169.

It is an arithmetic number, because the mean of its divisors is an integer number (1569067500).

Almost surely, 2^56550615055 is an apocalyptic number.

56550615055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56550615055 is a deficient number, since it is larger than the sum of its proper divisors (18764624945).

56550615055 is a wasteful number, since it uses less digits than its factorization.

56550615055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2405 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 56550615055 in words is "fifty-six billion, five hundred fifty million, six hundred fifteen thousand, fifty-five".