568256539 has 2 divisors, whose sum is σ = 568256540. Its totient is φ = 568256538.

The previous prime is 568256509. The next prime is 568256543. The reversal of 568256539 is 935652865.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 568256539 - 2¹⁵ = 568223771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 568256492 and 568256501.

It is not a weakly prime, because it can be changed into another prime (568256509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 284128269 + 284128270.

It is an arithmetic number, because the mean of its divisors is an integer number (284128270).

Almost surely, 2^568256539 is an apocalyptic number.

568256539 is a deficient number, since it is larger than the sum of its proper divisors (1).

568256539 is an equidigital number, since it uses as much as digits as its factorization.

568256539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944000, while the sum is 49.

The square root of 568256539 is about 23838.1320367180. The cubic root of 568256539 is about 828.2882120157.

The spelling of 568256539 in words is "five hundred sixty-eight million, two hundred fifty-six thousand, five hundred thirty-nine".