517170242 has 8 divisors (see below), whose sum is σ = 775854732. Its totient is φ = 258552000.

The previous prime is 517170233. The next prime is 517170257. The reversal of 517170242 is 242071715.

It can be written as a sum of positive squares in 2 ways, for example, as 517153081 + 17161 = 22741^2 + 131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14942 + ... + 35462.

Almost surely, 2^517170242 is an apocalyptic number.

517170242 is a deficient number, since it is larger than the sum of its proper divisors (258684490).

517170242 is a wasteful number, since it uses less digits than its factorization.

517170242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33124.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 517170242 is about 22741.3773109722. The cubic root of 517170242 is about 802.6838206898.

The spelling of 517170242 in words is "five hundred seventeen million, one hundred seventy thousand, two hundred forty-two".