517242715 has 16 divisors (see below), whose sum is σ = 683829216. Its totient is φ = 372448000.

The previous prime is 517242709. The next prime is 517242749.

517242715 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 517242715 - 2⁵ = 517242683 is a prime.

It is a Duffinian 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, 41002 + ... + 52111.

It is an arithmetic number, because the mean of its divisors is an integer number (42739326).

Almost surely, 2^517242715 is an apocalyptic number.

517242715 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

517242715 is a deficient number, since it is larger than the sum of its proper divisors (166586501).

517242715 is a wasteful number, since it uses less digits than its factorization.

517242715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93230.

The product of its digits is 19600, while the sum is 34.

The square root of 517242715 is about 22742.9706722759. The cubic root of 517242715 is about 802.7213133003.

The spelling of 517242715 in words is "five hundred seventeen million, two hundred forty-two thousand, seven hundred fifteen".