517017172 has 48 divisors (see below), whose sum is σ = 1056706560. Its totient is φ = 216770400.

The previous prime is 517017157. The next prime is 517017199. The reversal of 517017172 is 271710715.

It is a super-2 number, since 2×517017172² = 534613512285755168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275397 + ... + 277267.

It is an arithmetic number, because the mean of its divisors is an integer number (22014720).

Almost surely, 2^517017172 is an apocalyptic number.

It is an amenable number.

517017172 is an abundant number, since it is smaller than the sum of its proper divisors (539689388).

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

517017172 is a wasteful number, since it uses less digits than its factorization.

517017172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 31.

The square root of 517017172 is about 22738.0116105169. The cubic root of 517017172 is about 802.6046211494.

Adding to 517017172 its reverse (271710715), we get a palindrome (788727887).

The spelling of 517017172 in words is "five hundred seventeen million, seventeen thousand, one hundred seventy-two".