520612 has 12 divisors (see below), whose sum is σ = 917980. Its totient is φ = 258336.

The previous prime is 520609. The next prime is 520621. The reversal of 520612 is 216025.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 224676 + 295936 = 474^2 + 544^2 .

It is an unprimeable 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, 214 + ... + 1042.

2⁵²⁰⁶¹² is an apocalyptic number.

It is an amenable number.

520612 is a deficient number, since it is larger than the sum of its proper divisors (397368).

520612 is a wasteful number, since it uses less digits than its factorization.

520612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 520612 is about 721.5344759608. The cubic root of 520612 is about 80.4460500365.

Adding to 520612 its reverse (216025), we get a palindrome (736637).

The spelling of 520612 in words is "five hundred twenty thousand, six hundred twelve".