7225217 has 2 divisors, whose sum is σ = 7225218. Its totient is φ = 7225216.

The previous prime is 7225193. The next prime is 7225241. The reversal of 7225217 is 7125227.

It is a balanced prime because it is at equal distance from previous prime (7225193) and next prime (7225241).

It can be written as a sum of positive squares in only one way, i.e., 4456321 + 2768896 = 2111^2 + 1664^2 .

It is a cyclic number.

It is not a de Polignac number, because 7225217 - 2¹⁶ = 7159681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7225277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3612608 + 3612609.

It is an arithmetic number, because the mean of its divisors is an integer number (3612609).

Almost surely, 2^7225217 is an apocalyptic number.

It is an amenable number.

7225217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7225217 is an equidigital number, since it uses as much as digits as its factorization.

7225217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 26.

The square root of 7225217 is about 2687.9763763843. The cubic root of 7225217 is about 193.3230470812.

The spelling of 7225217 in words is "seven million, two hundred twenty-five thousand, two hundred seventeen".