255376789 has 2 divisors, whose sum is σ = 255376790. Its totient is φ = 255376788.

The previous prime is 255376757. The next prime is 255376801. The reversal of 255376789 is 987673552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251476164 + 3900625 = 15858^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 255376789 - 2⁵ = 255376757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255376189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127688394 + 127688395.

It is an arithmetic number, because the mean of its divisors is an integer number (127688395).

Almost surely, 2^255376789 is an apocalyptic number.

It is an amenable number.

255376789 is a deficient number, since it is larger than the sum of its proper divisors (1).

255376789 is an equidigital number, since it uses as much as digits as its factorization.

255376789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 52.

The square root of 255376789 is about 15980.5127890190. The cubic root of 255376789 is about 634.4447490879. Note that the first 3 decimals are identical.

The spelling of 255376789 in words is "two hundred fifty-five million, three hundred seventy-six thousand, seven hundred eighty-nine".