517879253 has 2 divisors, whose sum is σ = 517879254. Its totient is φ = 517879252.

The previous prime is 517879249. The next prime is 517879267. The reversal of 517879253 is 352978715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350513284 + 167365969 = 18722^2 + 12937^2 .

It is a cyclic number.

It is not a de Polignac number, because 517879253 - 2² = 517879249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 517879198 and 517879207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517879213) 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, 258939626 + 258939627.

It is an arithmetic number, because the mean of its divisors is an integer number (258939627).

Almost surely, 2^517879253 is an apocalyptic number.

It is an amenable number.

517879253 is a deficient number, since it is larger than the sum of its proper divisors (1).

517879253 is an equidigital number, since it uses as much as digits as its factorization.

517879253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 47.

The square root of 517879253 is about 22756.9605395800. The cubic root of 517879253 is about 803.0504644864.

The spelling of 517879253 in words is "five hundred seventeen million, eight hundred seventy-nine thousand, two hundred fifty-three".