566523401 has 2 divisors, whose sum is σ = 566523402. Its totient is φ = 566523400.

The previous prime is 566523379. The next prime is 566523403. The reversal of 566523401 is 104325665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451605001 + 114918400 = 21251^2 + 10720^2 .

It is a cyclic number.

It is not a de Polignac number, because 566523401 - 2¹⁸ = 566261257 is a prime.

Together with 566523403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (566523403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283261700 + 283261701.

It is an arithmetic number, because the mean of its divisors is an integer number (283261701).

Almost surely, 2^566523401 is an apocalyptic number.

It is an amenable number.

566523401 is a deficient number, since it is larger than the sum of its proper divisors (1).

566523401 is an equidigital number, since it uses as much as digits as its factorization.

566523401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 566523401 is about 23801.7520573591. The cubic root of 566523401 is about 827.4452830564.

The spelling of 566523401 in words is "five hundred sixty-six million, five hundred twenty-three thousand, four hundred one".