5220440225 has 48 divisors (see below), whose sum is σ = 8691527040. Its totient is φ = 3003955200.

The previous prime is 5220440213. The next prime is 5220440231.

5220440225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5220440225 - 2⁶ = 5220440161 is a prime.

It is a super-2 number, since 2×5220440225² = 54505992285596101250, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5220440194 and 5220440203.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79280 + ... + 129329.

It is an arithmetic number, because the mean of its divisors is an integer number (181073480).

Almost surely, 2^5220440225 is an apocalyptic number.

5220440225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5220440225 is a deficient number, since it is larger than the sum of its proper divisors (3471086815).

5220440225 is a wasteful number, since it uses less digits than its factorization.

5220440225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208650 (or 208645 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 5220440225 is about 72252.6139665549. The cubic root of 5220440225 is about 1734.7452584937.

It can be divided in two parts, 52204 and 40225, that added together give a palindrome (92429).

The spelling of 5220440225 in words is "five billion, two hundred twenty million, four hundred forty thousand, two hundred twenty-five".