5221224225 has 144 divisors (see below), whose sum is σ = 11572890240. Its totient is φ = 2260483200.

The previous prime is 5221224209. The next prime is 5221224233. The reversal of 5221224225 is 5224221225.

It is a happy number.

It is not a de Polignac number, because 5221224225 - 2⁴ = 5221224209 is a prime.

It is a super-2 number, since 2×5221224225² = 54522364815453701250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1704195 + ... + 1707255.

Almost surely, 2^5221224225 is an apocalyptic number.

It is an amenable number.

5221224225 is an abundant number, since it is smaller than the sum of its proper divisors (6351666015).

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

5221224225 is a wasteful number, since it uses less digits than its factorization.

5221224225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125 (or 3095 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 5221224225 is about 72258.0391721226. The cubic root of 5221224225 is about 1734.8320948616.

The spelling of 5221224225 in words is "five billion, two hundred twenty-one million, two hundred twenty-four thousand, two hundred twenty-five".