255814691 has 12 divisors (see below), whose sum is σ = 297727416. Its totient is φ = 218877120.

The previous prime is 255814679. The next prime is 255814693. The reversal of 255814691 is 196418552.

It is not a de Polignac number, because 255814691 - 2¹⁸ = 255552547 is a prime.

It is a super-3 number, since 3×255814691³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255814693) 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, 60125 + ... + 64238.

It is an arithmetic number, because the mean of its divisors is an integer number (24810618).

Almost surely, 2^255814691 is an apocalyptic number.

255814691 is a deficient number, since it is larger than the sum of its proper divisors (41912725).

255814691 is a wasteful number, since it uses less digits than its factorization.

255814691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124402 (or 124391 counting only the distinct ones).

The product of its digits is 86400, while the sum is 41.

The square root of 255814691 is about 15994.2080454144. The cubic root of 255814691 is about 634.8071756273.

The spelling of 255814691 in words is "two hundred fifty-five million, eight hundred fourteen thousand, six hundred ninety-one".