254549 has 4 divisors (see below), whose sum is σ = 255564. Its totient is φ = 253536.

The previous prime is 254537. The next prime is 254557. The reversal of 254549 is 945452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 136900 = 343^2 + 370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254549 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179 + ... + 735.

It is an arithmetic number, because the mean of its divisors is an integer number (63891).

2²⁵⁴⁵⁴⁹ is an apocalyptic number.

It is an amenable number.

254549 is a deficient number, since it is larger than the sum of its proper divisors (1015).

254549 is an equidigital number, since it uses as much as digits as its factorization.

254549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014.

The product of its digits is 7200, while the sum is 29.

The square root of 254549 is about 504.5284927534. The cubic root of 254549 is about 63.3758501832.

The spelling of 254549 in words is "two hundred fifty-four thousand, five hundred forty-nine".