254782889 has 2 divisors, whose sum is σ = 254782890. Its totient is φ = 254782888.

The previous prime is 254782877. The next prime is 254782907. The reversal of 254782889 is 988287452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196000000 + 58782889 = 14000^2 + 7667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254782889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254782889.

It is not a weakly prime, because it can be changed into another prime (254782849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127391444 + 127391445.

It is an arithmetic number, because the mean of its divisors is an integer number (127391445).

Almost surely, 2^254782889 is an apocalyptic number.

It is an amenable number.

254782889 is a deficient number, since it is larger than the sum of its proper divisors (1).

254782889 is an equidigital number, since it uses as much as digits as its factorization.

254782889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2580480, while the sum is 53.

The square root of 254782889 is about 15961.9199659690. The cubic root of 254782889 is about 633.9525492986.

The spelling of 254782889 in words is "two hundred fifty-four million, seven hundred eighty-two thousand, eight hundred eighty-nine".