255306291 has 8 divisors (see below), whose sum is σ = 341390784. Its totient is φ = 169713000.

The previous prime is 255306277. The next prime is 255306319. The reversal of 255306291 is 192603552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255306291 - 2¹⁴ = 255289907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255306241) 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 7 ways as a sum of consecutive naturals, for example, 121585 + ... + 123666.

It is an arithmetic number, because the mean of its divisors is an integer number (42673848).

Almost surely, 2^255306291 is an apocalyptic number.

255306291 is a deficient number, since it is larger than the sum of its proper divisors (86084493).

255306291 is a wasteful number, since it uses less digits than its factorization.

255306291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245601.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 255306291 is about 15978.3068877776. The cubic root of 255306291 is about 634.3863631993.

The spelling of 255306291 in words is "two hundred fifty-five million, three hundred six thousand, two hundred ninety-one".