5220220225 has 24 divisors (see below), whose sum is σ = 7072127712. Its totient is φ = 3790828800.

The previous prime is 5220220211. The next prime is 5220220279.

5220220225 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5220220225 - 2⁷ = 5220220097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5220220196 and 5220220205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173929 + ... + 201721.

It is an arithmetic number, because the mean of its divisors is an integer number (294671988).

Almost surely, 2^5220220225 is an apocalyptic number.

5220220225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5220220225 is a deficient number, since it is larger than the sum of its proper divisors (1851907487).

5220220225 is a wasteful number, since it uses less digits than its factorization.

5220220225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28497 (or 28492 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 5220220225 is about 72251.0915142463. The cubic root of 5220220225 is about 1734.7208895834.

It can be divided in two parts, 52202 and 20225, that added together give a palindrome (72427).

The spelling of 5220220225 in words is "five billion, two hundred twenty million, two hundred twenty thousand, two hundred twenty-five".