549225 has 18 divisors (see below), whose sum is σ = 984126. Its totient is φ = 292800.

The previous prime is 549221. The next prime is 549229. The reversal of 549225 is 522945.

It is an interprime number because it is at equal distance from previous prime (549221) and next prime (549229).

It can be written as a sum of positive squares in 3 ways, for example, as 144 + 549081 = 12^2 + 741^2 .

It is not a de Polignac number, because 549225 - 2² = 549221 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

549225 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549225.

It is not an unprimeable number, because it can be changed into a prime (549221) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 996 + ... + 1445.

2⁵⁴⁹²²⁵ is an apocalyptic number.

It is an amenable number.

549225 is a deficient number, since it is larger than the sum of its proper divisors (434901).

549225 is a wasteful number, since it uses less digits than its factorization.

549225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457 (or 2449 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 549225 is about 741.0971596221. The cubic root of 549225 is about 81.8936256986.

The spelling of 549225 in words is "five hundred forty-nine thousand, two hundred twenty-five".