520850 has 24 divisors (see below), whose sum is σ = 1057968. Its totient is φ = 189200.

The previous prime is 520841. The next prime is 520853. The reversal of 520850 is 58025.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520853) 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 11 ways as a sum of consecutive naturals, for example, 77 + ... + 1023.

It is an arithmetic number, because the mean of its divisors is an integer number (44082).

2⁵²⁰⁸⁵⁰ is an apocalyptic number.

520850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

520850 is an abundant number, since it is smaller than the sum of its proper divisors (537118).

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

520850 is a wasteful number, since it uses less digits than its factorization.

520850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 520850 is about 721.6993834000. The cubic root of 520850 is about 80.4583069208.

Adding to 520850 its reverse (58025), we get a palindrome (578875).

The spelling of 520850 in words is "five hundred twenty thousand, eight hundred fifty".