5220221225 has 6 divisors (see below), whose sum is σ = 6473074350. Its totient is φ = 4176176960.

The previous prime is 5220221221. The next prime is 5220221231. The reversal of 5220221225 is 5221220225.

It can be written as a sum of positive squares in 3 ways, for example, as 2181529 + 5218039696 = 1477^2 + 72236^2 .

It is not a de Polignac number, because 5220221225 - 2² = 5220221221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5220221225.

It is not an unprimeable number, because it can be changed into a prime (5220221221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 104404400 + ... + 104404449.

It is an arithmetic number, because the mean of its divisors is an integer number (1078845725).

Almost surely, 2^5220221225 is an apocalyptic number.

It is an amenable number.

5220221225 is a deficient number, since it is larger than the sum of its proper divisors (1252853125).

5220221225 is a wasteful number, since it uses less digits than its factorization.

5220221225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208808859 (or 208808854 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 5220221225 is about 72251.0984345567. The cubic root of 5220221225 is about 1734.7210003527.

The spelling of 5220221225 in words is "five billion, two hundred twenty million, two hundred twenty-one thousand, two hundred twenty-five".