255607939 has 2 divisors, whose sum is σ = 255607940. Its totient is φ = 255607938.

The previous prime is 255607853. The next prime is 255607987. The reversal of 255607939 is 939706552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255607939 - 2⁷ = 255607811 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (255607999) 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, 127803969 + 127803970.

It is an arithmetic number, because the mean of its divisors is an integer number (127803970).

Almost surely, 2^255607939 is an apocalyptic number.

255607939 is a deficient number, since it is larger than the sum of its proper divisors (1).

255607939 is an equidigital number, since it uses as much as digits as its factorization.

255607939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 510300, while the sum is 46.

The square root of 255607939 is about 15987.7433992418. The cubic root of 255607939 is about 634.6361103572.

The spelling of 255607939 in words is "two hundred fifty-five million, six hundred seven thousand, nine hundred thirty-nine".