56766973 has 2 divisors, whose sum is σ = 56766974. Its totient is φ = 56766972.

The previous prime is 56766953. The next prime is 56766977. The reversal of 56766973 is 37966765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45724644 + 11042329 = 6762^2 + 3323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56766973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56766977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28383486 + 28383487.

It is an arithmetic number, because the mean of its divisors is an integer number (28383487).

Almost surely, 2^56766973 is an apocalyptic number.

It is an amenable number.

56766973 is a deficient number, since it is larger than the sum of its proper divisors (1).

56766973 is an equidigital number, since it uses as much as digits as its factorization.

56766973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1428840, while the sum is 49.

The square root of 56766973 is about 7534.3860400168. The cubic root of 56766973 is about 384.3249496424.

The spelling of 56766973 in words is "fifty-six million, seven hundred sixty-six thousand, nine hundred seventy-three".