56720683 has 2 divisors, whose sum is σ = 56720684. Its totient is φ = 56720682.

The previous prime is 56720663. The next prime is 56720701. The reversal of 56720683 is 38602765.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56720683 - 2⁹ = 56720171 is a prime.

It is not a weakly prime, because it can be changed into another prime (56720633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28360341 + 28360342.

It is an arithmetic number, because the mean of its divisors is an integer number (28360342).

Almost surely, 2^56720683 is an apocalyptic number.

56720683 is a deficient number, since it is larger than the sum of its proper divisors (1).

56720683 is an equidigital number, since it uses as much as digits as its factorization.

56720683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 56720683 is about 7531.3134976576. The cubic root of 56720683 is about 384.2204567255.

The spelling of 56720683 in words is "fifty-six million, seven hundred twenty thousand, six hundred eighty-three".