56317783 has 2 divisors, whose sum is σ = 56317784. Its totient is φ = 56317782.

The previous prime is 56317771. The next prime is 56317813. The reversal of 56317783 is 38771365.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56317783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56317733) 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, 28158891 + 28158892.

It is an arithmetic number, because the mean of its divisors is an integer number (28158892).

Almost surely, 2^56317783 is an apocalyptic number.

56317783 is a deficient number, since it is larger than the sum of its proper divisors (1).

56317783 is an equidigital number, since it uses as much as digits as its factorization.

56317783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 56317783 is about 7504.5175061426. The cubic root of 56317783 is about 383.3085588694.

The spelling of 56317783 in words is "fifty-six million, three hundred seventeen thousand, seven hundred eighty-three".