254551 has 8 divisors (see below), whose sum is σ = 282384. Its totient is φ = 227520.

The previous prime is 254537. The next prime is 254557. The reversal of 254551 is 155452.

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

It is a cyclic number.

It is not a de Polignac number, because 254551 - 2⁵ = 254519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645 + ... + 961.

It is an arithmetic number, because the mean of its divisors is an integer number (35298).

2²⁵⁴⁵⁵¹ is an apocalyptic number.

254551 is a deficient number, since it is larger than the sum of its proper divisors (27833).

254551 is a wasteful number, since it uses less digits than its factorization.

254551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 1000, while the sum is 22.

The square root of 254551 is about 504.5304747981. The cubic root of 254551 is about 63.3760161648.

Subtracting from 254551 its reverse (155452), we obtain a palindrome (99099).

It can be divided in two parts, 2545 and 51, that multiplied together give a triangular number (129795 = T₅₀₉).

The spelling of 254551 in words is "two hundred fifty-four thousand, five hundred fifty-one".