667225 has 12 divisors (see below), whose sum is σ = 891436. Its totient is φ = 492480.

The previous prime is 667211. The next prime is 667229. The reversal of 667225 is 522766.

667225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 69696 + 597529 = 264^2 + 773^2 .

It is not a de Polignac number, because 667225 - 2¹¹ = 665177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 667193 and 667202.

It is not an unprimeable number, because it can be changed into a prime (667229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 702 + ... + 1351.

2⁶⁶⁷²²⁵ is an apocalyptic number.

667225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

667225 is a deficient number, since it is larger than the sum of its proper divisors (224211).

667225 is a wasteful number, since it uses less digits than its factorization.

667225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076 (or 2071 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 667225 is about 816.8384173140. The cubic root of 667225 is about 87.3824271233.

The spelling of 667225 in words is "six hundred sixty-seven thousand, two hundred twenty-five".