255117 has 8 divisors (see below), whose sum is σ = 342496. Its totient is φ = 168912.

The previous prime is 255107. The next prime is 255121. The reversal of 255117 is 711552.

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

It is not a de Polignac number, because 255117 - 2⁶ = 255053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255093 and 255102.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 255117.

It is not an unprimeable number, because it can be changed into a prime (255107) 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, 678 + ... + 984.

It is an arithmetic number, because the mean of its divisors is an integer number (42812).

2²⁵⁵¹¹⁷ is an apocalyptic number.

It is an amenable number.

255117 is a deficient number, since it is larger than the sum of its proper divisors (87379).

255117 is a wasteful number, since it uses less digits than its factorization.

255117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587.

The product of its digits is 350, while the sum is 21.

The square root of 255117 is about 505.0910808953. The cubic root of 255117 is about 63.4229540691.

Adding to 255117 its reverse (711552), we get a palindrome (966669).

The spelling of 255117 in words is "two hundred fifty-five thousand, one hundred seventeen".