660255 has 8 divisors (see below), whose sum is σ = 1056432. Its totient is φ = 352128.

The previous prime is 660251. The next prime is 660271. The reversal of 660255 is 552066.

660255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 660255 - 2² = 660251 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21994 + ... + 22023.

It is an arithmetic number, because the mean of its divisors is an integer number (132054).

2⁶⁶⁰²⁵⁵ is an apocalyptic number.

660255 is a deficient number, since it is larger than the sum of its proper divisors (396177).

660255 is a wasteful number, since it uses less digits than its factorization.

660255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44025.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 660255 is about 812.5607669584. The cubic root of 660255 is about 87.0770884975.

The spelling of 660255 in words is "six hundred sixty thousand, two hundred fifty-five".