255443047 has 2 divisors, whose sum is σ = 255443048. Its totient is φ = 255443046.

The previous prime is 255443021. The next prime is 255443053. The reversal of 255443047 is 740344552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255443047 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255443147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127721523 + 127721524.

It is an arithmetic number, because the mean of its divisors is an integer number (127721524).

Almost surely, 2^255443047 is an apocalyptic number.

255443047 is a deficient number, since it is larger than the sum of its proper divisors (1).

255443047 is an equidigital number, since it uses as much as digits as its factorization.

255443047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 34.

The square root of 255443047 is about 15982.5857419881. The cubic root of 255443047 is about 634.4996136475.

Adding to 255443047 its reverse (740344552), we get a palindrome (995787599).

The spelling of 255443047 in words is "two hundred fifty-five million, four hundred forty-three thousand, forty-seven".