56611278594 has 40 divisors (see below), whose sum is σ = 136608987900. Its totient is φ = 17418854304.

The previous prime is 56611278593. The next prime is 56611278629. The reversal of 56611278594 is 49587211665.

It is a happy number.

56611278594 is a `hidden beast` number, since 566 + 1 + 1 + 2 + 78 + 5 + 9 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56483701569 + 127577025 = 237663^2 + 11295^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 56611278594.

It is not an unprimeable number, because it can be changed into a prime (56611278593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13438369 + ... + 13442580.

Almost surely, 2^56611278594 is an apocalyptic number.

56611278594 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

56611278594 is an abundant number, since it is smaller than the sum of its proper divisors (79997709306).

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

56611278594 is a wasteful number, since it uses less digits than its factorization.

56611278594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26880976 (or 26880967 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The spelling of 56611278594 in words is "fifty-six billion, six hundred eleven million, two hundred seventy-eight thousand, five hundred ninety-four".