520229 has 4 divisors (see below), whose sum is σ = 521676. Its totient is φ = 518784.

The previous prime is 520213. The next prime is 520241. The reversal of 520229 is 922025.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 429025 = 302^2 + 655^2 .

It is a cyclic number.

It is not a de Polignac number, because 520229 - 2⁴ = 520213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520279) 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, 287 + ... + 1059.

It is an arithmetic number, because the mean of its divisors is an integer number (130419).

2⁵²⁰²²⁹ is an apocalyptic number.

It is an amenable number.

520229 is a deficient number, since it is larger than the sum of its proper divisors (1447).

520229 is an equidigital number, since it uses as much as digits as its factorization.

520229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 520229 is about 721.2690205464. The cubic root of 520229 is about 80.4263178778.

The spelling of 520229 in words is "five hundred twenty thousand, two hundred twenty-nine".