56553959193 has 16 divisors (see below), whose sum is σ = 78712656000. Its totient is φ = 36050154624.

The previous prime is 56553959191. The next prime is 56553959213. The reversal of 56553959193 is 39195935565.

It is not a de Polignac number, because 56553959193 - 2¹ = 56553959191 is a prime.

It is a super-2 number, since 2×56553959193² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56553959191) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40605 + ... + 338757.

It is an arithmetic number, because the mean of its divisors is an integer number (4919541000).

Almost surely, 2^56553959193 is an apocalyptic number.

It is an amenable number.

56553959193 is a deficient number, since it is larger than the sum of its proper divisors (22158696807).

56553959193 is a wasteful number, since it uses less digits than its factorization.

56553959193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300928.

The product of its digits is 24603750, while the sum is 60.

The spelling of 56553959193 in words is "fifty-six billion, five hundred fifty-three million, nine hundred fifty-nine thousand, one hundred ninety-three".