255905335019 has 2 divisors, whose sum is σ = 255905335020. Its totient is φ = 255905335018.

The previous prime is 255905335009. The next prime is 255905335039. The reversal of 255905335019 is 910533509552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255905335019 is a prime.

It is a super-2 number, since 2×255905335019² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (255905335009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127952667509 + 127952667510.

It is an arithmetic number, because the mean of its divisors is an integer number (127952667510).

Almost surely, 2^255905335019 is an apocalyptic number.

255905335019 is a deficient number, since it is larger than the sum of its proper divisors (1).

255905335019 is an equidigital number, since it uses as much as digits as its factorization.

255905335019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 911250, while the sum is 47.

The spelling of 255905335019 in words is "two hundred fifty-five billion, nine hundred five million, three hundred thirty-five thousand, nineteen".