255918311 has 8 divisors (see below), whose sum is σ = 279481104. Its totient is φ = 232405120.

The previous prime is 255918283. The next prime is 255918317. The reversal of 255918311 is 113819552.

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

It is a cyclic number.

It is not a de Polignac number, because 255918311 - 2¹⁴ = 255901927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255918317) 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, 1160 + ... + 22653.

It is an arithmetic number, because the mean of its divisors is an integer number (34935138).

Almost surely, 2^255918311 is an apocalyptic number.

255918311 is a deficient number, since it is larger than the sum of its proper divisors (23562793).

255918311 is a wasteful number, since it uses less digits than its factorization.

255918311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24801.

The product of its digits is 10800, while the sum is 35.

The square root of 255918311 is about 15997.4470150709. The cubic root of 255918311 is about 634.8928754749.

The spelling of 255918311 in words is "two hundred fifty-five million, nine hundred eighteen thousand, three hundred eleven".