255407311 has 2 divisors, whose sum is σ = 255407312. Its totient is φ = 255407310.

The previous prime is 255407297. The next prime is 255407381. The reversal of 255407311 is 113704552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255407311 - 2¹³ = 255399119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255407311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255407381) 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 as a sum of consecutive naturals, namely, 127703655 + 127703656.

It is an arithmetic number, because the mean of its divisors is an integer number (127703656).

Almost surely, 2^255407311 is an apocalyptic number.

255407311 is a deficient number, since it is larger than the sum of its proper divisors (1).

255407311 is an equidigital number, since it uses as much as digits as its factorization.

255407311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 255407311 is about 15981.4677360998. The cubic root of 255407311 is about 634.4700238349.

The spelling of 255407311 in words is "two hundred fifty-five million, four hundred seven thousand, three hundred eleven".