517553076253 has 2 divisors, whose sum is σ = 517553076254. Its totient is φ = 517553076252.

The previous prime is 517553076233. The next prime is 517553076259. The reversal of 517553076253 is 352670355715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465065349849 + 52487726404 = 681957^2 + 229102^2 .

It is a cyclic number.

It is not a de Polignac number, because 517553076253 - 2²⁹ = 517016205341 is a prime.

It is a super-2 number, since 2×517553076253² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 517553076197 and 517553076206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (517553076259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258776538126 + 258776538127.

It is an arithmetic number, because the mean of its divisors is an integer number (258776538127).

Almost surely, 2^517553076253 is an apocalyptic number.

It is an amenable number.

517553076253 is a deficient number, since it is larger than the sum of its proper divisors (1).

517553076253 is an equidigital number, since it uses as much as digits as its factorization.

517553076253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3307500, while the sum is 49.

The spelling of 517553076253 in words is "five hundred seventeen billion, five hundred fifty-three million, seventy-six thousand, two hundred fifty-three".