520912 has 20 divisors (see below), whose sum is σ = 1153696. Its totient is φ = 223200.

The previous prime is 520889. The next prime is 520913. The reversal of 520912 is 219025.

520912 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 520912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520913) by changing a digit.

520912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2214 + ... + 2437.

2⁵²⁰⁹¹² is an apocalyptic number.

It is an amenable number.

520912 is an abundant number, since it is smaller than the sum of its proper divisors (632784).

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

520912 is a wasteful number, since it uses less digits than its factorization.

520912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666 (or 4660 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 520912 is about 721.7423362946. The cubic root of 520912 is about 80.4614992776.

Adding to 520912 its reverse (219025), we get a palindrome (739937).

The spelling of 520912 in words is "five hundred twenty thousand, nine hundred twelve".