255532643 has 2 divisors, whose sum is σ = 255532644. Its totient is φ = 255532642.

The previous prime is 255532639. The next prime is 255532657. The reversal of 255532643 is 346235552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255532643 - 2² = 255532639 is a prime.

It is not a weakly prime, because it can be changed into another prime (255532243) 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, 127766321 + 127766322.

It is an arithmetic number, because the mean of its divisors is an integer number (127766322).

Almost surely, 2^255532643 is an apocalyptic number.

255532643 is a deficient number, since it is larger than the sum of its proper divisors (1).

255532643 is an equidigital number, since it uses as much as digits as its factorization.

255532643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 35.

The square root of 255532643 is about 15985.3884219308. The cubic root of 255532643 is about 634.5737880187.

The spelling of 255532643 in words is "two hundred fifty-five million, five hundred thirty-two thousand, six hundred forty-three".