566406091 has 2 divisors, whose sum is σ = 566406092. Its totient is φ = 566406090.

The previous prime is 566406031. The next prime is 566406109. The reversal of 566406091 is 190604665.

566406091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (566406109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 566406091 - 2⁹ = 566405579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 566406091.

It is not a weakly prime, because it can be changed into another prime (566406031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283203045 + 283203046.

It is an arithmetic number, because the mean of its divisors is an integer number (283203046).

Almost surely, 2^566406091 is an apocalyptic number.

566406091 is a deficient number, since it is larger than the sum of its proper divisors (1).

566406091 is an equidigital number, since it uses as much as digits as its factorization.

566406091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 566406091 is about 23799.2876153888. The cubic root of 566406091 is about 827.3881660826.

The spelling of 566406091 in words is "five hundred sixty-six million, four hundred six thousand, ninety-one".