255112391 has 8 divisors (see below), whose sum is σ = 264092400. Its totient is φ = 246144640.

The previous prime is 255112379. The next prime is 255112433. The reversal of 255112391 is 193211552.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255112391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255112321) 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, 65951 + ... + 69711.

It is an arithmetic number, because the mean of its divisors is an integer number (33011550).

Almost surely, 2^255112391 is an apocalyptic number.

255112391 is a deficient number, since it is larger than the sum of its proper divisors (8980009).

255112391 is a wasteful number, since it uses less digits than its factorization.

255112391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6129.

The product of its digits is 2700, while the sum is 29.

The square root of 255112391 is about 15972.2381337119. The cubic root of 255112391 is about 634.2257212907.

The spelling of 255112391 in words is "two hundred fifty-five million, one hundred twelve thousand, three hundred ninety-one".