56943871 has 2 divisors, whose sum is σ = 56943872. Its totient is φ = 56943870.

The previous prime is 56943857. The next prime is 56943899. The reversal of 56943871 is 17834965.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56943871 - 2⁵ = 56943839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56943841) 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 as a sum of consecutive naturals, namely, 28471935 + 28471936.

It is an arithmetic number, because the mean of its divisors is an integer number (28471936).

Almost surely, 2^56943871 is an apocalyptic number.

56943871 is a deficient number, since it is larger than the sum of its proper divisors (1).

56943871 is an equidigital number, since it uses as much as digits as its factorization.

56943871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 56943871 is about 7546.1162858785. The cubic root of 56943871 is about 384.7237485296.

The spelling of 56943871 in words is "fifty-six million, nine hundred forty-three thousand, eight hundred seventy-one".