520117 has 4 divisors (see below), whose sum is σ = 560140. Its totient is φ = 480096.

The previous prime is 520111. The next prime is 520123. The reversal of 520117 is 711025.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (520111) and next prime (520123).

It can be written as a sum of positive squares in 2 ways, for example, as 352836 + 167281 = 594^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 520117 - 2⁷ = 519989 is a prime.

It is a Duffinian number.

520117 is a modest number, since divided by 117 gives 52 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 520117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520111) 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, 19992 + ... + 20017.

It is an arithmetic number, because the mean of its divisors is an integer number (140035).

2⁵²⁰¹¹⁷ is an apocalyptic number.

It is an amenable number.

520117 is a deficient number, since it is larger than the sum of its proper divisors (40023).

520117 is a wasteful number, since it uses less digits than its factorization.

520117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40022.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 520117 is about 721.1913754337. The cubic root of 520117 is about 80.4205458081.

The spelling of 520117 in words is "five hundred twenty thousand, one hundred seventeen".