565248839 has 2 divisors, whose sum is σ = 565248840. Its totient is φ = 565248838.

The previous prime is 565248833. The next prime is 565248847. The reversal of 565248839 is 938842565.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-565248839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (565248833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282624419 + 282624420.

It is an arithmetic number, because the mean of its divisors is an integer number (282624420).

Almost surely, 2^565248839 is an apocalyptic number.

565248839 is a deficient number, since it is larger than the sum of its proper divisors (1).

565248839 is an equidigital number, since it uses as much as digits as its factorization.

565248839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 50.

The square root of 565248839 is about 23774.9624395077. The cubic root of 565248839 is about 826.8242894640.

The spelling of 565248839 in words is "five hundred sixty-five million, two hundred forty-eight thousand, eight hundred thirty-nine".