56131560205 has 72 divisors (see below), whose sum is σ = 81249087744. Its totient is φ = 37102282560.

The previous prime is 56131560197. The next prime is 56131560229. The reversal of 56131560205 is 50206513165.

It is not a de Polignac number, because 56131560205 - 2³ = 56131560197 is a prime.

It is a super-3 number, since 3×56131560205³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 58046632 + ... + 58047598.

It is an arithmetic number, because the mean of its divisors is an integer number (1128459552).

Almost surely, 2^56131560205 is an apocalyptic number.

It is an amenable number.

56131560205 is a deficient number, since it is larger than the sum of its proper divisors (25117527539).

56131560205 is an equidigital number, since it uses as much as digits as its factorization.

56131560205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175 (or 1097 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 56131560205 in words is "fifty-six billion, one hundred thirty-one million, five hundred sixty thousand, two hundred five".