255746539 has 2 divisors, whose sum is σ = 255746540. Its totient is φ = 255746538.

The previous prime is 255746537. The next prime is 255746551. The reversal of 255746539 is 935647552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255746539 - 2¹ = 255746537 is a prime.

Together with 255746537, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (255746537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127873269 + 127873270.

It is an arithmetic number, because the mean of its divisors is an integer number (127873270).

Almost surely, 2^255746539 is an apocalyptic number.

255746539 is a deficient number, since it is larger than the sum of its proper divisors (1).

255746539 is an equidigital number, since it uses as much as digits as its factorization.

255746539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134000, while the sum is 46.

The square root of 255746539 is about 15992.0773822540. The cubic root of 255746539 is about 634.7507972895.

The spelling of 255746539 in words is "two hundred fifty-five million, seven hundred forty-six thousand, five hundred thirty-nine".