7224325 has 6 divisors (see below), whose sum is σ = 8958194. Its totient is φ = 5779440.

The previous prime is 7224311. The next prime is 7224341. The reversal of 7224325 is 5234227.

It can be written as a sum of positive squares in 3 ways, for example, as 4356 + 7219969 = 66^2 + 2687^2 .

It is not a de Polignac number, because 7224325 - 2⁷ = 7224197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 288973 = 7224325 / (7 + 2 + 2 + 4 + 3 + 2 + 5).

It is a d-powerful number, because it can be written as 7⁸ + 2⁶ + 2⁹ + 4³ + 3⁹ + 2²⁰ + 5⁸ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7224325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144462 + ... + 144511.

Almost surely, 2^7224325 is an apocalyptic number.

It is an amenable number.

7224325 is a deficient number, since it is larger than the sum of its proper divisors (1733869).

7224325 is a wasteful number, since it uses less digits than its factorization.

7224325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288983 (or 288978 counting only the distinct ones).

The product of its digits is 3360, while the sum is 25.

The square root of 7224325 is about 2687.8104471856. The cubic root of 7224325 is about 193.3150910916.

The spelling of 7224325 in words is "seven million, two hundred twenty-four thousand, three hundred twenty-five".