517162172 has 12 divisors (see below), whose sum is σ = 929494440. Its totient is φ = 251592336.

The previous prime is 517162171. The next prime is 517162183. The reversal of 517162172 is 271261715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517162171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1747022 + ... + 1747317.

It is an arithmetic number, because the mean of its divisors is an integer number (77457870).

Almost surely, 2^517162172 is an apocalyptic number.

It is an amenable number.

517162172 is a deficient number, since it is larger than the sum of its proper divisors (412332268).

517162172 is a wasteful number, since it uses less digits than its factorization.

517162172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494380 (or 3494378 counting only the distinct ones).

The product of its digits is 5880, while the sum is 32.

The square root of 517162172 is about 22741.1998803933. The cubic root of 517162172 is about 802.6796456028.

The spelling of 517162172 in words is "five hundred seventeen million, one hundred sixty-two thousand, one hundred seventy-two".