520732 has 6 divisors (see below), whose sum is σ = 911288. Its totient is φ = 260364.

The previous prime is 520721. The next prime is 520747. The reversal of 520732 is 237025.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

520732 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 as a sum of consecutive naturals, namely, 65088 + ... + 65095.

2⁵²⁰⁷³² is an apocalyptic number.

It is an amenable number.

520732 is a deficient number, since it is larger than the sum of its proper divisors (390556).

520732 is a wasteful number, since it uses less digits than its factorization.

520732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130187 (or 130185 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 520732 is about 721.6176272792. The cubic root of 520732 is about 80.4522304450.

Adding to 520732 its reverse (237025), we get a palindrome (757757).

The spelling of 520732 in words is "five hundred twenty thousand, seven hundred thirty-two".