7225825 has 6 divisors (see below), whose sum is σ = 8960054. Its totient is φ = 5780640.

The previous prime is 7225819. The next prime is 7225831. The reversal of 7225825 is 5285227.

It is an interprime number because it is at equal distance from previous prime (7225819) and next prime (7225831).

It can be written as a sum of positive squares in 3 ways, for example, as 192721 + 7033104 = 439^2 + 2652^2 .

It is not a de Polignac number, because 7225825 - 2⁵ = 7225793 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 (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144492 + ... + 144541.

Almost surely, 2^7225825 is an apocalyptic number.

It is an amenable number.

7225825 is a deficient number, since it is larger than the sum of its proper divisors (1734229).

7225825 is a wasteful number, since it uses less digits than its factorization.

7225825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289043 (or 289038 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 7225825 is about 2688.0894702372. The cubic root of 7225825 is about 193.3284696227.

The spelling of 7225825 in words is "seven million, two hundred twenty-five thousand, eight hundred twenty-five".