254887285 has 4 divisors (see below), whose sum is σ = 305864748. Its totient is φ = 203909824.

The previous prime is 254887279. The next prime is 254887289. The reversal of 254887285 is 582788452.

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 69872881 + 185014404 = 8359^2 + 13602^2 .

It is a cyclic number.

It is not a de Polignac number, because 254887285 - 2⁹ = 254886773 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254887289) 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, 25488724 + ... + 25488733.

It is an arithmetic number, because the mean of its divisors is an integer number (76466187).

Almost surely, 2^254887285 is an apocalyptic number.

It is an amenable number.

254887285 is a deficient number, since it is larger than the sum of its proper divisors (50977463).

254887285 is an equidigital number, since it uses as much as digits as its factorization.

254887285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50977462.

The product of its digits is 1433600, while the sum is 49.

The square root of 254887285 is about 15965.1897890379. The cubic root of 254887285 is about 634.0391237587.

The spelling of 254887285 in words is "two hundred fifty-four million, eight hundred eighty-seven thousand, two hundred eighty-five".