254965 has 4 divisors (see below), whose sum is σ = 305964. Its totient is φ = 203968.

The previous prime is 254963. The next prime is 254971. The reversal of 254965 is 569452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33124 + 221841 = 182^2 + 471^2 .

It is a cyclic number.

It is not a de Polignac number, because 254965 - 2¹ = 254963 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (254963) 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, 25492 + ... + 25501.

It is an arithmetic number, because the mean of its divisors is an integer number (76491).

2²⁵⁴⁹⁶⁵ is an apocalyptic number.

It is an amenable number.

254965 is a deficient number, since it is larger than the sum of its proper divisors (50999).

254965 is an equidigital number, since it uses as much as digits as its factorization.

254965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50998.

The product of its digits is 10800, while the sum is 31.

The square root of 254965 is about 504.9405905649. The cubic root of 254965 is about 63.4103556610.

The spelling of 254965 in words is "two hundred fifty-four thousand, nine hundred sixty-five".