509253959 has 2 divisors, whose sum is σ = 509253960. Its totient is φ = 509253958.

The previous prime is 509253947. The next prime is 509253973. The reversal of 509253959 is 959352905.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 509253959 - 2¹² = 509249863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509253919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254626979 + 254626980.

It is an arithmetic number, because the mean of its divisors is an integer number (254626980).

Almost surely, 2^509253959 is an apocalyptic number.

509253959 is a deficient number, since it is larger than the sum of its proper divisors (1).

509253959 is an equidigital number, since it uses as much as digits as its factorization.

509253959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 546750, while the sum is 47.

The square root of 509253959 is about 22566.6559108788. The cubic root of 509253959 is about 798.5672057202.

The spelling of 509253959 in words is "five hundred nine million, two hundred fifty-three thousand, nine hundred fifty-nine".