566081987 has 2 divisors, whose sum is σ = 566081988. Its totient is φ = 566081986.

The previous prime is 566081969. The next prime is 566082007. The reversal of 566081987 is 789180665.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 566081987 - 2¹² = 566077891 is a prime.

It is not a weakly prime, because it can be changed into another prime (566081927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283040993 + 283040994.

It is an arithmetic number, because the mean of its divisors is an integer number (283040994).

Almost surely, 2^566081987 is an apocalyptic number.

566081987 is a deficient number, since it is larger than the sum of its proper divisors (1).

566081987 is an equidigital number, since it uses as much as digits as its factorization.

566081987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 566081987 is about 23792.4775296731. The cubic root of 566081987 is about 827.2303223360.

The spelling of 566081987 in words is "five hundred sixty-six million, eighty-one thousand, nine hundred eighty-seven".