509090597 has 2 divisors, whose sum is σ = 509090598. Its totient is φ = 509090596.

The previous prime is 509090513. The next prime is 509090627. The reversal of 509090597 is 795090905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 499567201 + 9523396 = 22351^2 + 3086^2 .

It is a cyclic number.

It is not a de Polignac number, because 509090597 - 2⁸ = 509090341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509090507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254545298 + 254545299.

It is an arithmetic number, because the mean of its divisors is an integer number (254545299).

Almost surely, 2^509090597 is an apocalyptic number.

It is an amenable number.

509090597 is a deficient number, since it is larger than the sum of its proper divisors (1).

509090597 is an equidigital number, since it uses as much as digits as its factorization.

509090597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127575, while the sum is 44.

The square root of 509090597 is about 22563.0360767340. The cubic root of 509090597 is about 798.4818066211.

The spelling of 509090597 in words is "five hundred nine million, ninety thousand, five hundred ninety-seven".