254493 has 6 divisors (see below), whose sum is σ = 367614. Its totient is φ = 169656.

The previous prime is 254491. The next prime is 254519. The reversal of 254493 is 394452.

It can be written as a sum of positive squares in only one way, i.e., 205209 + 49284 = 453^2 + 222^2 .

It is not a de Polignac number, because 254493 - 2¹ = 254491 is a prime.

It is a Curzon number.

254493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14130 + ... + 14147.

It is an arithmetic number, because the mean of its divisors is an integer number (61269).

2²⁵⁴⁴⁹³ is an apocalyptic number.

It is an amenable number.

254493 is a deficient number, since it is larger than the sum of its proper divisors (113121).

254493 is a wasteful number, since it uses less digits than its factorization.

254493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28283 (or 28280 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 254493 is about 504.4729923395. The cubic root of 254493 is about 63.3712023447.

It can be divided in two parts, 25449 and 3, that added together give a palindrome (25452).

The spelling of 254493 in words is "two hundred fifty-four thousand, four hundred ninety-three".