255296889 has 12 divisors (see below), whose sum is σ = 381478500. Its totient is φ = 164328864.

The previous prime is 255296887. The next prime is 255296893. The reversal of 255296889 is 988692552.

255296889 is a `hidden beast` number, since 2 + 552 + 9 + 6 + 8 + 89 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 179345664 + 75951225 = 13392^2 + 8715^2 .

It is not a de Polignac number, because 255296889 - 2¹ = 255296887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255296887) 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 in 11 ways as a sum of consecutive naturals, for example, 488814 + ... + 489335.

It is an arithmetic number, because the mean of its divisors is an integer number (31789875).

Almost surely, 2^255296889 is an apocalyptic number.

255296889 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

255296889 is a deficient number, since it is larger than the sum of its proper divisors (126181611).

255296889 is a wasteful number, since it uses less digits than its factorization.

255296889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978184 (or 978181 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The square root of 255296889 is about 15978.0126736713. The cubic root of 255296889 is about 634.3785757246.

The spelling of 255296889 in words is "two hundred fifty-five million, two hundred ninety-six thousand, eight hundred eighty-nine".