566525681 has 2 divisors, whose sum is σ = 566525682. Its totient is φ = 566525680.

The previous prime is 566525633. The next prime is 566525693. The reversal of 566525681 is 186525665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350288656 + 216237025 = 18716^2 + 14705^2 .

It is a cyclic number.

It is not a de Polignac number, because 566525681 - 2²⁶ = 499416817 is a prime.

It is a super-2 number, since 2×566525681² = 641902694465027522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (566524681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283262840 + 283262841.

It is an arithmetic number, because the mean of its divisors is an integer number (283262841).

Almost surely, 2^566525681 is an apocalyptic number.

It is an amenable number.

566525681 is a deficient number, since it is larger than the sum of its proper divisors (1).

566525681 is an equidigital number, since it uses as much as digits as its factorization.

566525681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 44.

The square root of 566525681 is about 23801.7999529447. The cubic root of 566525681 is about 827.4463930857.

The spelling of 566525681 in words is "five hundred sixty-six million, five hundred twenty-five thousand, six hundred eighty-one".