630225 has 18 divisors (see below), whose sum is σ = 1129206. Its totient is φ = 336000.

The previous prime is 630197. The next prime is 630229. The reversal of 630225 is 522036.

It can be written as a sum of positive squares in 3 ways, for example, as 40401 + 589824 = 201^2 + 768^2 .

It is not a de Polignac number, because 630225 - 2⁵ = 630193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630198 and 630207.

It is not an unprimeable number, because it can be changed into a prime (630229) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 1176 + ... + 1625.

2⁶³⁰²²⁵ is an apocalyptic number.

It is an amenable number.

630225 is a deficient number, since it is larger than the sum of its proper divisors (498981).

630225 is a wasteful number, since it uses less digits than its factorization.

630225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2809 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 630225 is about 793.8671173440. The cubic root of 630225 is about 85.7363931071.

The spelling of 630225 in words is "six hundred thirty thousand, two hundred twenty-five".