566247749 has 2 divisors, whose sum is σ = 566247750. Its totient is φ = 566247748.

The previous prime is 566247733. The next prime is 566247751. The reversal of 566247749 is 947742665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 565583524 + 664225 = 23782^2 + 815^2 .

It is a cyclic number.

It is not a de Polignac number, because 566247749 - 2⁴ = 566247733 is a prime.

Together with 566247751, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 566247697 and 566247706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (566247769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 283123874 + 283123875.

It is an arithmetic number, because the mean of its divisors is an integer number (283123875).

Almost surely, 2^566247749 is an apocalyptic number.

It is an amenable number.

566247749 is a deficient number, since it is larger than the sum of its proper divisors (1).

566247749 is an equidigital number, since it uses as much as digits as its factorization.

566247749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 50.

The square root of 566247749 is about 23795.9607706854. The cubic root of 566247749 is about 827.3110585625.

The spelling of 566247749 in words is "five hundred sixty-six million, two hundred forty-seven thousand, seven hundred forty-nine".