255009739 has 2 divisors, whose sum is σ = 255009740. Its totient is φ = 255009738.

The previous prime is 255009691. The next prime is 255009743. The reversal of 255009739 is 937900552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255009739 - 2⁷ = 255009611 is a prime.

It is not a weakly prime, because it can be changed into another prime (255009779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127504869 + 127504870.

It is an arithmetic number, because the mean of its divisors is an integer number (127504870).

Almost surely, 2^255009739 is an apocalyptic number.

255009739 is a deficient number, since it is larger than the sum of its proper divisors (1).

255009739 is an equidigital number, since it uses as much as digits as its factorization.

255009739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 255009739 is about 15969.0243596783. The cubic root of 255009739 is about 634.1406433993.

The spelling of 255009739 in words is "two hundred fifty-five million, nine thousand, seven hundred thirty-nine".