254563 has 4 divisors (see below), whose sum is σ = 255760. Its totient is φ = 253368.

The previous prime is 254557. The next prime is 254593. The reversal of 254563 is 365452.

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 is a cyclic number.

It is not a de Polignac number, because 254563 - 2¹³ = 246371 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 5⁷ + 5⁷ + 4⁸ + 6 + 3 .

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254593) 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, 183 + ... + 736.

It is an arithmetic number, because the mean of its divisors is an integer number (63940).

2²⁵⁴⁵⁶³ is an apocalyptic number.

254563 is a deficient number, since it is larger than the sum of its proper divisors (1197).

254563 is an equidigital number, since it uses as much as digits as its factorization.

254563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196.

The product of its digits is 3600, while the sum is 25.

The square root of 254563 is about 504.5423669029. The cubic root of 254563 is about 63.3770120363.

Subtracting 254563 from its reverse (365452), we obtain a square (110889 = 333²).

The spelling of 254563 in words is "two hundred fifty-four thousand, five hundred sixty-three".