56831171 has 2 divisors, whose sum is σ = 56831172. Its totient is φ = 56831170.

The previous prime is 56831167. The next prime is 56831191. The reversal of 56831171 is 17113865.

56831171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56831171 - 2² = 56831167 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56831191) 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 as a sum of consecutive naturals, namely, 28415585 + 28415586.

It is an arithmetic number, because the mean of its divisors is an integer number (28415586).

Almost surely, 2^56831171 is an apocalyptic number.

56831171 is a deficient number, since it is larger than the sum of its proper divisors (1).

56831171 is an equidigital number, since it uses as much as digits as its factorization.

56831171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 32.

The square root of 56831171 is about 7538.6451700554. The cubic root of 56831171 is about 384.4697732770.

The spelling of 56831171 in words is "fifty-six million, eight hundred thirty-one thousand, one hundred seventy-one".