566563 has 2 divisors, whose sum is σ = 566564. Its totient is φ = 566562.

The previous prime is 566557. The next prime is 566567. The reversal of 566563 is 365665.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-566563 is a prime.

It is not a weakly prime, because it can be changed into another prime (566567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283281 + 283282.

It is an arithmetic number, because the mean of its divisors is an integer number (283282).

2⁵⁶⁶⁵⁶³ is an apocalyptic number.

566563 is a deficient number, since it is larger than the sum of its proper divisors (1).

566563 is an equidigital number, since it uses as much as digits as its factorization.

566563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16200, while the sum is 31.

The square root of 566563 is about 752.7037930023. The cubic root of 566563 is about 82.7464561602.

The spelling of 566563 in words is "five hundred sixty-six thousand, five hundred sixty-three".