56255521311 has 24 divisors (see below), whose sum is σ = 88802603136. Its totient is φ = 34033663440.

The previous prime is 56255521297. The next prime is 56255521331. The reversal of 56255521311 is 11312555265.

56255521311 is a `hidden beast` number, since 5 + 625 + 5 + 5 + 2 + 13 + 11 = 666.

It is not a de Polignac number, because 56255521311 - 2⁹ = 56255520799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56255521331) 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 23 ways as a sum of consecutive naturals, for example, 448915 + ... + 560388.

It is an arithmetic number, because the mean of its divisors is an integer number (3700108464).

Almost surely, 2^56255521311 is an apocalyptic number.

56255521311 is a deficient number, since it is larger than the sum of its proper divisors (32547081825).

56255521311 is a wasteful number, since it uses less digits than its factorization.

56255521311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009883 (or 1009880 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The spelling of 56255521311 in words is "fifty-six billion, two hundred fifty-five million, five hundred twenty-one thousand, three hundred eleven".