255889369 has 4 divisors (see below), whose sum is σ = 255936996. Its totient is φ = 255841744.

The previous prime is 255889367. The next prime is 255889399. The reversal of 255889369 is 963988552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8928144 + 246961225 = 2988^2 + 15715^2 .

It is a cyclic number.

It is not a de Polignac number, because 255889369 - 2¹ = 255889367 is a prime.

It is a super-2 number, since 2×255889369² = 130958738334436322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255889367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14554 + ... + 26899.

It is an arithmetic number, because the mean of its divisors is an integer number (63984249).

Almost surely, 2^255889369 is an apocalyptic number.

It is an amenable number.

255889369 is a deficient number, since it is larger than the sum of its proper divisors (47627).

255889369 is an equidigital number, since it uses as much as digits as its factorization.

255889369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47626.

The product of its digits is 4665600, while the sum is 55.

The square root of 255889369 is about 15996.5424076580. The cubic root of 255889369 is about 634.8689410636.

The spelling of 255889369 in words is "two hundred fifty-five million, eight hundred eighty-nine thousand, three hundred sixty-nine".