520505500 has 48 divisors (see below), whose sum is σ = 1173489408. Its totient is φ = 201480000.

The previous prime is 520505443. The next prime is 520505539. The reversal of 520505500 is 5505025.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291 + ... + 32290.

It is an arithmetic number, because the mean of its divisors is an integer number (24447696).

Almost surely, 2^520505500 is an apocalyptic number.

520505500 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 520505500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586744704).

520505500 is an abundant number, since it is smaller than the sum of its proper divisors (652983908).

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

520505500 is a wasteful number, since it uses less digits than its factorization.

520505500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33631 (or 33619 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 22.

The square root of 520505500 is about 22814.5896303221. The cubic root of 520505500 is about 804.4056412852.

The spelling of 520505500 in words is "five hundred twenty million, five hundred five thousand, five hundred".