56181339 has 12 divisors (see below), whose sum is σ = 82063800. Its totient is φ = 37032864.

The previous prime is 56181337. The next prime is 56181343. The reversal of 56181339 is 93318165.

It is a happy number.

56181339 is a `hidden beast` number, since 5 + 618 + 1 + 3 + 39 = 666.

56181339 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56181339 - 2¹ = 56181337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56181337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34269 + ... + 35870.

It is an arithmetic number, because the mean of its divisors is an integer number (6838650).

Almost surely, 2^56181339 is an apocalyptic number.

56181339 is a deficient number, since it is larger than the sum of its proper divisors (25882461).

56181339 is a wasteful number, since it uses less digits than its factorization.

56181339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70234 (or 70231 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 56181339 is about 7495.4212023074. The cubic root of 56181339 is about 382.9987547310.

The spelling of 56181339 in words is "fifty-six million, one hundred eighty-one thousand, three hundred thirty-nine".