56916943 has 2 divisors, whose sum is σ = 56916944. Its totient is φ = 56916942.

The previous prime is 56916931. The next prime is 56916947. The reversal of 56916943 is 34961965.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56916943 - 2⁵ = 56916911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56916943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56916947) 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, 28458471 + 28458472.

It is an arithmetic number, because the mean of its divisors is an integer number (28458472).

Almost surely, 2^56916943 is an apocalyptic number.

56916943 is a deficient number, since it is larger than the sum of its proper divisors (1).

56916943 is an equidigital number, since it uses as much as digits as its factorization.

56916943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 43.

The square root of 56916943 is about 7544.3318458297. The cubic root of 56916943 is about 384.6630953849.

The spelling of 56916943 in words is "fifty-six million, nine hundred sixteen thousand, nine hundred forty-three".