255755446452509 has 2 divisors, whose sum is σ = 255755446452510. Its totient is φ = 255755446452508.

The previous prime is 255755446452371. The next prime is 255755446452533. The reversal of 255755446452509 is 905254644557552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254808493649284 + 946952803225 = 15962722^2 + 973115^2 .

It is a cyclic number.

It is not a de Polignac number, because 255755446452509 - 2¹² = 255755446448413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255755446452809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127877723226254 + 127877723226255.

It is an arithmetic number, because the mean of its divisors is an integer number (127877723226255).

Almost surely, 2^{255755446452509} is an apocalyptic number.

It is an amenable number.

255755446452509 is a deficient number, since it is larger than the sum of its proper divisors (1).

255755446452509 is an equidigital number, since it uses as much as digits as its factorization.

255755446452509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000000, while the sum is 68.

The spelling of 255755446452509 in words is "two hundred fifty-five trillion, seven hundred fifty-five billion, four hundred forty-six million, four hundred fifty-two thousand, five hundred nine".