520573 has 4 divisors (see below), whose sum is σ = 524800. Its totient is φ = 516348.

The previous prime is 520571. The next prime is 520589. The reversal of 520573 is 375025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 520573 - 2¹ = 520571 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 (520571) 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, 1923 + ... + 2176.

It is an arithmetic number, because the mean of its divisors is an integer number (131200).

2⁵²⁰⁵⁷³ is an apocalyptic number.

It is an amenable number.

520573 is a deficient number, since it is larger than the sum of its proper divisors (4227).

520573 is a wasteful number, since it uses less digits than its factorization.

520573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 520573 is about 721.5074497190. The cubic root of 520573 is about 80.4440411993. Note that the first 3 decimals are identical.

Adding to 520573 its reverse (375025), we get a palindrome (895598).

The spelling of 520573 in words is "five hundred twenty thousand, five hundred seventy-three".