254591 has 4 divisors (see below), whose sum is σ = 263400. Its totient is φ = 245784.

The previous prime is 254557. The next prime is 254593. The reversal of 254591 is 195452.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 254591 - 2¹⁰ = 253567 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4361 + ... + 4418.

It is an arithmetic number, because the mean of its divisors is an integer number (65850).

2²⁵⁴⁵⁹¹ is an apocalyptic number.

254591 is a deficient number, since it is larger than the sum of its proper divisors (8809).

254591 is an equidigital number, since it uses as much as digits as its factorization.

254591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8808.

The product of its digits is 1800, while the sum is 26.

The square root of 254591 is about 504.5701140575. The cubic root of 254591 is about 63.3793356147.

The spelling of 254591 in words is "two hundred fifty-four thousand, five hundred ninety-one".