500133520 has 20 divisors (see below), whose sum is σ = 1162810620. Its totient is φ = 200053376.

The previous prime is 500133499. The next prime is 500133521. The reversal of 500133520 is 25331005.

It can be written as a sum of positive squares in 2 ways, for example, as 78570496 + 421563024 = 8864^2 + 20532^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (500133521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3125755 + ... + 3125914.

It is an arithmetic number, because the mean of its divisors is an integer number (58140531).

Almost surely, 2^500133520 is an apocalyptic number.

It is an amenable number.

500133520 is an abundant number, since it is smaller than the sum of its proper divisors (662677100).

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

500133520 is a wasteful number, since it uses less digits than its factorization.

500133520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251682 (or 6251676 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 500133520 is about 22363.6651736695. The cubic root of 500133520 is about 793.7711696257.

Adding to 500133520 its reverse (25331005), we get a palindrome (525464525).

The spelling of 500133520 in words is "five hundred million, one hundred thirty-three thousand, five hundred twenty".