520808 has 8 divisors (see below), whose sum is σ = 976530. Its totient is φ = 260400.

The previous prime is 520787. The next prime is 520813. The reversal of 520808 is 808025.

It can be written as a sum of positive squares in only one way, i.e., 362404 + 158404 = 602^2 + 398^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 32543 + ... + 32558.

2⁵²⁰⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

520808 is a deficient number, since it is larger than the sum of its proper divisors (455722).

520808 is a wasteful number, since it uses less digits than its factorization.

520808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65107 (or 65103 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 520808 is about 721.6702848254. The cubic root of 520808 is about 80.4561442126.

The spelling of 520808 in words is "five hundred twenty thousand, eight hundred eight".