500200020 has 54 divisors (see below), whose sum is σ = 1518184122. Its totient is φ = 133306656.

The previous prime is 500200013. The next prime is 500200073. The reversal of 500200020 is 20002005.

It can be written as a sum of positive squares in only one way, i.e., 400160016 + 100040004 = 20004^2 + 10002^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 500199975 and 500200011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 299227 + ... + 300893.

Almost surely, 2^500200020 is an apocalyptic number.

It is an amenable number.

500200020 is an abundant number, since it is smaller than the sum of its proper divisors (1017984102).

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

500200020 is a wasteful number, since it uses less digits than its factorization.

500200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3349 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The square root of 500200020 is about 22365.1519109529. The cubic root of 500200020 is about 793.8063491937.

Multiplying 500200020 by its product of nonzero digits (20), we get a square (10004000400 = 100020²).

500200020 divided by its product of nonzero digits (20) gives a square (25010001 = 5001²).

Adding to 500200020 its reverse (20002005), we get a palindrome (520202025).

The spelling of 500200020 in words is "five hundred million, two hundred thousand, twenty".