660325 has 12 divisors (see below), whose sum is σ = 834148. Its totient is φ = 518400.

The previous prime is 660299. The next prime is 660329. The reversal of 660325 is 523066.

It can be written as a sum of positive squares in 6 ways, for example, as 252004 + 408321 = 502^2 + 639^2 .

It is not a de Polignac number, because 660325 - 2⁷ = 660197 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 660296 and 660305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660329) 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, 1309 + ... + 1741.

2⁶⁶⁰³²⁵ is an apocalyptic number.

It is an amenable number.

660325 is a deficient number, since it is larger than the sum of its proper divisors (173823).

660325 is a wasteful number, since it uses less digits than its factorization.

660325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 660325 is about 812.6038395184. The cubic root of 660325 is about 87.0801656828.

The spelling of 660325 in words is "six hundred sixty thousand, three hundred twenty-five".