566557 has 2 divisors, whose sum is σ = 566558. Its totient is φ = 566556.

The previous prime is 566551. The next prime is 566563. The reversal of 566557 is 755665.

It is a balanced prime because it is at equal distance from previous prime (566551) and next prime (566563).

It can be written as a sum of positive squares in only one way, i.e., 498436 + 68121 = 706^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 566557 - 2³ = 566549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283278 + 283279.

It is an arithmetic number, because the mean of its divisors is an integer number (283279).

2⁵⁶⁶⁵⁵⁷ is an apocalyptic number.

It is an amenable number.

566557 is a deficient number, since it is larger than the sum of its proper divisors (1).

566557 is an equidigital number, since it uses as much as digits as its factorization.

566557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31500, while the sum is 34.

The square root of 566557 is about 752.6998073601. The cubic root of 566557 is about 82.7461640595.

The spelling of 566557 in words is "five hundred sixty-six thousand, five hundred fifty-seven".