516268009 has 2 divisors, whose sum is σ = 516268010. Its totient is φ = 516268008.

The previous prime is 516268003. The next prime is 516268013. The reversal of 516268009 is 900862615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494617600 + 21650409 = 22240^2 + 4653^2 .

It is a cyclic number.

It is not a de Polignac number, because 516268009 - 2³ = 516268001 is a prime.

It is not a weakly prime, because it can be changed into another prime (516268001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258134004 + 258134005.

It is an arithmetic number, because the mean of its divisors is an integer number (258134005).

Almost surely, 2^516268009 is an apocalyptic number.

It is an amenable number.

516268009 is a deficient number, since it is larger than the sum of its proper divisors (1).

516268009 is an equidigital number, since it uses as much as digits as its factorization.

516268009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 516268009 is about 22721.5318365642. The cubic root of 516268009 is about 802.2167730769.

The spelling of 516268009 in words is "five hundred sixteen million, two hundred sixty-eight thousand, nine".