566522261 has 2 divisors, whose sum is σ = 566522262. Its totient is φ = 566522260.

The previous prime is 566522237. The next prime is 566522273. The reversal of 566522261 is 162225665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 551968036 + 14554225 = 23494^2 + 3815^2 .

It is a cyclic number.

It is not a de Polignac number, because 566522261 - 2⁶ = 566522197 is a prime.

It is a super-3 number, since 3×566522261³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566521261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283261130 + 283261131.

It is an arithmetic number, because the mean of its divisors is an integer number (283261131).

Almost surely, 2^566522261 is an apocalyptic number.

It is an amenable number.

566522261 is a deficient number, since it is larger than the sum of its proper divisors (1).

566522261 is an equidigital number, since it uses as much as digits as its factorization.

566522261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 566522261 is about 23801.7281095302. The cubic root of 566522261 is about 827.4447280407. Note that the first 3 decimals are identical.

The spelling of 566522261 in words is "five hundred sixty-six million, five hundred twenty-two thousand, two hundred sixty-one".