254566 has 8 divisors (see below), whose sum is σ = 411264. Its totient is φ = 117480.

The previous prime is 254557. The next prime is 254593. The reversal of 254566 is 665452.

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

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

It is a congruent number.

It is an unprimeable number.

254566 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4870 + ... + 4921.

It is an arithmetic number, because the mean of its divisors is an integer number (51408).

2²⁵⁴⁵⁶⁶ is an apocalyptic number.

254566 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

254566 is a deficient number, since it is larger than the sum of its proper divisors (156698).

254566 is a wasteful number, since it uses less digits than its factorization.

254566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9806.

The product of its digits is 7200, while the sum is 28.

The square root of 254566 is about 504.5453398853. The cubic root of 254566 is about 63.3772609993.

It can be divided in two parts, 254 and 566, that added together give a triangular number (820 = T₄₀).

The spelling of 254566 in words is "two hundred fifty-four thousand, five hundred sixty-six".