520544 has 12 divisors (see below), whose sum is σ = 1024884. Its totient is φ = 260256.

The previous prime is 520529. The next prime is 520547. The reversal of 520544 is 445025.

It is a happy number.

520544 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 520544.

It is not an unprimeable number, because it can be changed into a prime (520547) by changing a digit.

520544 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 as a sum of consecutive naturals, namely, 8102 + ... + 8165.

It is an arithmetic number, because the mean of its divisors is an integer number (85407).

2⁵²⁰⁵⁴⁴ is an apocalyptic number.

It is an amenable number.

520544 is a deficient number, since it is larger than the sum of its proper divisors (504340).

520544 is a wasteful number, since it uses less digits than its factorization.

520544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16277 (or 16269 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 520544 is about 721.4873526265. The cubic root of 520544 is about 80.4425473835.

Adding to 520544 its reverse (445025), we get a palindrome (965569).

The spelling of 520544 in words is "five hundred twenty thousand, five hundred forty-four".