517085054903 has 2 divisors, whose sum is σ = 517085054904. Its totient is φ = 517085054902.

The previous prime is 517085054879. The next prime is 517085054911. The reversal of 517085054903 is 309450580715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 517085054903 - 2¹⁸ = 517084792759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517085054803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258542527451 + 258542527452.

It is an arithmetic number, because the mean of its divisors is an integer number (258542527452).

Almost surely, 2^517085054903 is an apocalyptic number.

517085054903 is a deficient number, since it is larger than the sum of its proper divisors (1).

517085054903 is an equidigital number, since it uses as much as digits as its factorization.

517085054903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 517085054903 in words is "five hundred seventeen billion, eighty-five million, fifty-four thousand, nine hundred three".