517899960 has 128 divisors (see below), whose sum is σ = 1750248000. Its totient is φ = 136194048.

The previous prime is 517899959. The next prime is 517899971. The reversal of 517899960 is 69998715.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 517899897 and 517899906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75556 + ... + 82124.

Almost surely, 2^517899960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517899960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (875124000).

517899960 is an abundant number, since it is smaller than the sum of its proper divisors (1232348040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

517899960 is a wasteful number, since it uses less digits than its factorization.

517899960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6662 (or 6652 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The square root of 517899960 is about 22757.4154947349. The cubic root of 517899960 is about 803.0611674602.

The spelling of 517899960 in words is "five hundred seventeen million, eight hundred ninety-nine thousand, nine hundred sixty".