520000220 has 48 divisors (see below), whose sum is σ = 1126086528. Its totient is φ = 201553920.

The previous prime is 520000193. The next prime is 520000223. The reversal of 520000220 is 22000025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199244 + ... + 201836.

It is an arithmetic number, because the mean of its divisors is an integer number (23460136).

Almost surely, 2^520000220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520000220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563043264).

520000220 is an abundant number, since it is smaller than the sum of its proper divisors (606086308).

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

520000220 is a wasteful number, since it uses less digits than its factorization.

520000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2910 (or 2908 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 520000220 is about 22803.5133258014. The cubic root of 520000220 is about 804.1452651229.

Adding to 520000220 its reverse (22000025), we get a palindrome (542000245).

The spelling of 520000220 in words is "five hundred twenty million, two hundred twenty", and thus it is an aban number.