518253017 has 2 divisors, whose sum is σ = 518253018. Its totient is φ = 518253016.

The previous prime is 518252993. The next prime is 518253019. The reversal of 518253017 is 710352815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 455779801 + 62473216 = 21349^2 + 7904^2 .

It is a cyclic number.

It is not a de Polignac number, because 518253017 - 2⁶ = 518252953 is a prime.

Together with 518253019, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (518253019) 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, 259126508 + 259126509.

It is an arithmetic number, because the mean of its divisors is an integer number (259126509).

Almost surely, 2^518253017 is an apocalyptic number.

It is an amenable number.

518253017 is a deficient number, since it is larger than the sum of its proper divisors (1).

518253017 is an equidigital number, since it uses as much as digits as its factorization.

518253017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 518253017 is about 22765.1711392645. The cubic root of 518253017 is about 803.2436106509.

The spelling of 518253017 in words is "five hundred eighteen million, two hundred fifty-three thousand, seventeen".