520206 has 16 divisors (see below), whose sum is σ = 1047504. Its totient is φ = 172224.

The previous prime is 520193. The next prime is 520213. The reversal of 520206 is 602025.

520206 is nontrivially palindromic in base 5.

It is a super-2 number, since 2×520206² = 541228564872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

520206 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1506 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (65469).

2⁵²⁰²⁰⁶ is an apocalyptic number.

520206 is an abundant number, since it is smaller than the sum of its proper divisors (527298).

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

520206 is a wasteful number, since it uses less digits than its factorization.

520206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 520206 is about 721.2530762499. The cubic root of 520206 is about 80.4251326097.

The spelling of 520206 in words is "five hundred twenty thousand, two hundred six".