57566983 has 2 divisors, whose sum is σ = 57566984. Its totient is φ = 57566982.

The previous prime is 57566959. The next prime is 57566987. The reversal of 57566983 is 38966575.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57566983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57566987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28783491 + 28783492.

It is an arithmetic number, because the mean of its divisors is an integer number (28783492).

Almost surely, 2^57566983 is an apocalyptic number.

57566983 is a deficient number, since it is larger than the sum of its proper divisors (1).

57566983 is an equidigital number, since it uses as much as digits as its factorization.

57566983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1360800, while the sum is 49.

The square root of 57566983 is about 7587.2908867395. The cubic root of 57566983 is about 386.1219490834.

The spelling of 57566983 in words is "fifty-seven million, five hundred sixty-six thousand, nine hundred eighty-three".