254665 has 12 divisors (see below), whose sum is σ = 321732. Its totient is φ = 193440.

The previous prime is 254663. The next prime is 254699. The reversal of 254665 is 566452.

254665 is nontrivially palindromic in base 13.

It can be written as a sum of positive squares in 2 ways, for example, as 138384 + 116281 = 372^2 + 341^2 .

It is not a de Polignac number, because 254665 - 2¹ = 254663 is a prime.

It is a Duffinian number.

Its product of digits (7200) is a multiple of the sum of its prime factors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254663) 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, 4779 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (26811).

2²⁵⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

254665 is a deficient number, since it is larger than the sum of its proper divisors (67067).

254665 is an equidigital number, since it uses as much as digits as its factorization.

254665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 89 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 254665 is about 504.6434384791. The cubic root of 254665 is about 63.3854756805.

It can be divided in two parts, 254 and 665, that added together give a palindrome (919).

The spelling of 254665 in words is "two hundred fifty-four thousand, six hundred sixty-five".