565564429 has 2 divisors, whose sum is σ = 565564430. Its totient is φ = 565564428.

The previous prime is 565564399. The next prime is 565564453. The reversal of 565564429 is 924465565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299809225 + 265755204 = 17315^2 + 16302^2 .

It is a cyclic number.

It is not a de Polignac number, because 565564429 - 2¹¹ = 565562381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565564459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282782214 + 282782215.

It is an arithmetic number, because the mean of its divisors is an integer number (282782215).

Almost surely, 2^565564429 is an apocalyptic number.

It is an amenable number.

565564429 is a deficient number, since it is larger than the sum of its proper divisors (1).

565564429 is an equidigital number, since it uses as much as digits as its factorization.

565564429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 46.

The square root of 565564429 is about 23781.5985375248. The cubic root of 565564429 is about 826.9781384784.

The spelling of 565564429 in words is "five hundred sixty-five million, five hundred sixty-four thousand, four hundred twenty-nine".