7222450225 has 27 divisors (see below), whose sum is σ = 9374838123. Its totient is φ = 5519265840.

The previous prime is 7222450201. The next prime is 7222450231. The reversal of 7222450225 is 5220542227.

The square root of 7222450225 is 84985.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2600082081 + 4622368144 = 50991^2 + 67988^2 .

It is not a de Polignac number, because 7222450225 - 2²¹ = 7220353073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9772906 + ... + 9773644.

Almost surely, 2^7222450225 is an apocalyptic number.

7222450225 is the 84985-th square number.

7222450225 is the 42493-rd centered octagonal number.

It is an amenable number.

7222450225 is a deficient number, since it is larger than the sum of its proper divisors (2152387898).

7222450225 is an frugal number, since it uses more digits than its factorization.

7222450225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The cubic root of 7222450225 is about 1932.9836733053.

The spelling of 7222450225 in words is "seven billion, two hundred twenty-two million, four hundred fifty thousand, two hundred twenty-five".