255325689 has 16 divisors (see below), whose sum is σ = 382933440. Its totient is φ = 170215668.

The previous prime is 255325673. The next prime is 255325699. The reversal of 255325689 is 986523552.

255325689 is a `hidden beast` number, since 2 + 55 + 32 + 568 + 9 = 666.

It is not a de Polignac number, because 255325689 - 2⁴ = 255325673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255325649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56187 + ... + 60560.

It is an arithmetic number, because the mean of its divisors is an integer number (23933340).

Almost surely, 2^255325689 is an apocalyptic number.

It is an amenable number.

255325689 is a deficient number, since it is larger than the sum of its proper divisors (127607751).

255325689 is an frugal number, since it uses more digits than its factorization.

255325689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116768 (or 116750 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 255325689 is about 15978.9138867446. The cubic root of 255325689 is about 634.4024295419.

The spelling of 255325689 in words is "two hundred fifty-five million, three hundred twenty-five thousand, six hundred eighty-nine".