5220020 has 48 divisors (see below), whose sum is σ = 12510288. Its totient is φ = 1812480.

The previous prime is 5220013. The next prime is 5220031. The reversal of 5220020 is 200225.

It can be written as a sum of positive squares in 8 ways, for example, as 85264 + 5134756 = 292^2 + 2266^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5219983 and 5220010.

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, 3830 + ... + 5010.

It is an arithmetic number, because the mean of its divisors is an integer number (260631).

Almost surely, 2^5220020 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 5220020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6255144).

5220020 is an abundant number, since it is smaller than the sum of its proper divisors (7290268).

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

5220020 is a wasteful number, since it uses less digits than its factorization.

5220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1218 counting only the distinct ones).

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

The square root of 5220020 is about 2284.7363086361. The cubic root of 5220020 is about 173.4698710511.

Adding to 5220020 its reverse (200225), we get a palindrome (5420245).

The spelling of 5220020 in words is "five million, two hundred twenty thousand, twenty".