520648 has 16 divisors (see below), whose sum is σ = 984960. Its totient is φ = 258000.

The previous prime is 520633. The next prime is 520649. The reversal of 520648 is 846025.

It is not an unprimeable number, because it can be changed into a prime (520649) by changing a digit.

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, 993 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (61560).

2⁵²⁰⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

520648 is a deficient number, since it is larger than the sum of its proper divisors (464312).

520648 is a wasteful number, since it uses less digits than its factorization.

520648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 520648 is about 721.5594223624. The cubic root of 520648 is about 80.4479042588.

The spelling of 520648 in words is "five hundred twenty thousand, six hundred forty-eight".