255874243 has 2 divisors, whose sum is σ = 255874244. Its totient is φ = 255874242.

The previous prime is 255874211. The next prime is 255874247. The reversal of 255874243 is 342478552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255874243 - 2⁵ = 255874211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255874196 and 255874205.

It is not a weakly prime, because it can be changed into another prime (255874247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127937121 + 127937122.

It is an arithmetic number, because the mean of its divisors is an integer number (127937122).

Almost surely, 2^255874243 is an apocalyptic number.

255874243 is a deficient number, since it is larger than the sum of its proper divisors (1).

255874243 is an equidigital number, since it uses as much as digits as its factorization.

255874243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 40.

The square root of 255874243 is about 15996.0696110013. The cubic root of 255874243 is about 634.8564314690.

The spelling of 255874243 in words is "two hundred fifty-five million, eight hundred seventy-four thousand, two hundred forty-three".