565070749 has 2 divisors, whose sum is σ = 565070750. Its totient is φ = 565070748.

The previous prime is 565070747. The next prime is 565070791. The reversal of 565070749 is 947070565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285846649 + 279224100 = 16907^2 + 16710^2 .

It is a cyclic number.

It is not a de Polignac number, because 565070749 - 2¹ = 565070747 is a prime.

Together with 565070747, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565070741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282535374 + 282535375.

It is an arithmetic number, because the mean of its divisors is an integer number (282535375).

Almost surely, 2^565070749 is an apocalyptic number.

It is an amenable number.

565070749 is a deficient number, since it is larger than the sum of its proper divisors (1).

565070749 is an equidigital number, since it uses as much as digits as its factorization.

565070749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 565070749 is about 23771.2168178240. The cubic root of 565070749 is about 826.7374459392.

The spelling of 565070749 in words is "five hundred sixty-five million, seventy thousand, seven hundred forty-nine".