255243291 has 8 divisors (see below), whose sum is σ = 340478784. Its totient is φ = 170085000.

The previous prime is 255243277. The next prime is 255243299. The reversal of 255243291 is 192342552.

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

It is not a de Polignac number, because 255243291 - 2¹⁷ = 255112219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255243299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11085 + ... + 25166.

It is an arithmetic number, because the mean of its divisors is an integer number (42559848).

Almost surely, 2^255243291 is an apocalyptic number.

255243291 is a deficient number, since it is larger than the sum of its proper divisors (85235493).

255243291 is a wasteful number, since it uses less digits than its factorization.

255243291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38601.

The product of its digits is 21600, while the sum is 33.

The square root of 255243291 is about 15976.3353432507. The cubic root of 255243291 is about 634.3341780004.

The spelling of 255243291 in words is "two hundred fifty-five million, two hundred forty-three thousand, two hundred ninety-one".