517852393 has 2 divisors, whose sum is σ = 517852394. Its totient is φ = 517852392.

The previous prime is 517852373. The next prime is 517852409. The reversal of 517852393 is 393258715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 400520169 + 117332224 = 20013^2 + 10832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-517852393 is a prime.

It is a super-2 number, since 2×517852393² = 536342201871652898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (517852343) 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, 258926196 + 258926197.

It is an arithmetic number, because the mean of its divisors is an integer number (258926197).

Almost surely, 2^517852393 is an apocalyptic number.

It is an amenable number.

517852393 is a deficient number, since it is larger than the sum of its proper divisors (1).

517852393 is an equidigital number, since it uses as much as digits as its factorization.

517852393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 517852393 is about 22756.3703828181. The cubic root of 517852393 is about 803.0365807427.

The spelling of 517852393 in words is "five hundred seventeen million, eight hundred fifty-two thousand, three hundred ninety-three".