517085053850 has 12 divisors (see below), whose sum is σ = 961778200254. Its totient is φ = 206834021520.

The previous prime is 517085053829. The next prime is 517085053889. The reversal of 517085053850 is 58350580715.

It can be written as a sum of positive squares in 3 ways, for example, as 248882252161 + 268202801689 = 498881^2 + 517883^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 517085053795 and 517085053804.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5170850489 + ... + 5170850588.

Almost surely, 2^517085053850 is an apocalyptic number.

517085053850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

517085053850 is a deficient number, since it is larger than the sum of its proper divisors (444693146404).

517085053850 is a wasteful number, since it uses less digits than its factorization.

517085053850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10341701089 (or 10341701084 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 47.

The spelling of 517085053850 in words is "five hundred seventeen billion, eighty-five million, fifty-three thousand, eight hundred fifty".