520442717 has 8 divisors (see below), whose sum is σ = 541574880. Its totient is φ = 499721040.

The previous prime is 520442701. The next prime is 520442749. The reversal of 520442717 is 717244025.

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 520442717 - 2⁴ = 520442701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520441717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100034 + ... + 105107.

It is an arithmetic number, because the mean of its divisors is an integer number (67696860).

Almost surely, 2^520442717 is an apocalyptic number.

It is an amenable number.

520442717 is a deficient number, since it is larger than the sum of its proper divisors (21132163).

520442717 is a wasteful number, since it uses less digits than its factorization.

520442717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205243.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 520442717 is about 22813.2136491113. The cubic root of 520442717 is about 804.3732977076.

The spelling of 520442717 in words is "five hundred twenty million, four hundred forty-two thousand, seven hundred seventeen".