255255455343305 has 4 divisors (see below), whose sum is σ = 306306546411972. Its totient is φ = 204204364274640.

The previous prime is 255255455343281. The next prime is 255255455343337. The reversal of 255255455343305 is 503343554552552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69864655986064 + 185390799357241 = 8358508^2 + 13615829^2 .

It is not a de Polignac number, because 255255455343305 - 2¹⁶ = 255255455277769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25525545534326 + ... + 25525545534335.

It is an arithmetic number, because the mean of its divisors is an integer number (76576636602993).

Almost surely, 2^{255255455343305} is an apocalyptic number.

It is an amenable number.

255255455343305 is a deficient number, since it is larger than the sum of its proper divisors (51051091068667).

255255455343305 is an equidigital number, since it uses as much as digits as its factorization.

255255455343305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51051091068666.

The product of its (nonzero) digits is 135000000, while the sum is 56.

The spelling of 255255455343305 in words is "two hundred fifty-five trillion, two hundred fifty-five billion, four hundred fifty-five million, three hundred forty-three thousand, three hundred five".