520500 has 48 divisors (see below), whose sum is σ = 1520064. Its totient is φ = 138400.

The previous prime is 520451. The next prime is 520529. The reversal of 520500 is 5025.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 520500.

It is an unprimeable number.

520500 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 in 15 ways as a sum of consecutive naturals, for example, 1327 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (31668).

2⁵²⁰⁵⁰⁰ is an apocalyptic number.

520500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760032).

520500 is an abundant number, since it is smaller than the sum of its proper divisors (999564).

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

520500 is a wasteful number, since it uses less digits than its factorization.

520500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 12.

The square root of 520500 is about 721.4568594171. The cubic root of 520500 is about 80.4402807984.

Adding to 520500 its reverse (5025), we get a palindrome (525525).

The spelling of 520500 in words is "five hundred twenty thousand, five hundred".