254994449 has 2 divisors, whose sum is σ = 254994450. Its totient is φ = 254994448.

The previous prime is 254994431. The next prime is 254994451. The reversal of 254994449 is 944499452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237622225 + 17372224 = 15415^2 + 4168^2 .

It is a cyclic number.

It is not a de Polignac number, because 254994449 - 2¹² = 254990353 is a prime.

Together with 254994451, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 254994397 and 254994406.

It is not a weakly prime, because it can be changed into another prime (254994409) 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 as a sum of consecutive naturals, namely, 127497224 + 127497225.

It is an arithmetic number, because the mean of its divisors is an integer number (127497225).

Almost surely, 2^254994449 is an apocalyptic number.

It is an amenable number.

254994449 is a deficient number, since it is larger than the sum of its proper divisors (1).

254994449 is an equidigital number, since it uses as much as digits as its factorization.

254994449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 50.

The square root of 254994449 is about 15968.5456131734. The cubic root of 254994449 is about 634.1279691065.

The spelling of 254994449 in words is "two hundred fifty-four million, nine hundred ninety-four thousand, four hundred forty-nine".