517395245 has 8 divisors (see below), whose sum is σ = 620997216. Its totient is φ = 413834256.

The previous prime is 517395217. The next prime is 517395259. The reversal of 517395245 is 542593715.

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

It is a cyclic number.

It is not a de Polignac number, because 517395245 - 2⁸ = 517394989 is a prime.

It is a super-2 number, since 2×517395245² = 535395679097220050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39494 + ... + 50936.

It is an arithmetic number, because the mean of its divisors is an integer number (77624652).

Almost surely, 2^517395245 is an apocalyptic number.

It is an amenable number.

517395245 is a deficient number, since it is larger than the sum of its proper divisors (103601971).

517395245 is a wasteful number, since it uses less digits than its factorization.

517395245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20491.

The product of its digits is 189000, while the sum is 41.

The square root of 517395245 is about 22746.3237689082. The cubic root of 517395245 is about 802.8002105278.

The spelling of 517395245 in words is "five hundred seventeen million, three hundred ninety-five thousand, two hundred forty-five".