254805449 has 2 divisors, whose sum is σ = 254805450. Its totient is φ = 254805448.

The previous prime is 254805437. The next prime is 254805451. The reversal of 254805449 is 944508452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176039824 + 78765625 = 13268^2 + 8875^2 .

It is a cyclic number.

It is not a de Polignac number, because 254805449 - 2⁴ = 254805433 is a prime.

Together with 254805451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (254805949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127402724 + 127402725.

It is an arithmetic number, because the mean of its divisors is an integer number (127402725).

Almost surely, 2^254805449 is an apocalyptic number.

It is an amenable number.

254805449 is a deficient number, since it is larger than the sum of its proper divisors (1).

254805449 is an equidigital number, since it uses as much as digits as its factorization.

254805449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 254805449 is about 15962.6266322307. The cubic root of 254805449 is about 633.9712600625.

The spelling of 254805449 in words is "two hundred fifty-four million, eight hundred five thousand, four hundred forty-nine".