255333643 has 2 divisors, whose sum is σ = 255333644. Its totient is φ = 255333642.

The previous prime is 255333607. The next prime is 255333671. The reversal of 255333643 is 346333552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255333643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255333599 and 255333608.

It is not a weakly prime, because it can be changed into another prime (255393643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127666821 + 127666822.

It is an arithmetic number, because the mean of its divisors is an integer number (127666822).

Almost surely, 2^255333643 is an apocalyptic number.

255333643 is a deficient number, since it is larger than the sum of its proper divisors (1).

255333643 is an equidigital number, since it uses as much as digits as its factorization.

255333643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 34.

The square root of 255333643 is about 15979.1627753146. The cubic root of 255333643 is about 634.4090171863.

Subtracting 255333643 from its reverse (346333552), we obtain a palindrome (90999909).

The spelling of 255333643 in words is "two hundred fifty-five million, three hundred thirty-three thousand, six hundred forty-three".