255205133255 has 4 divisors (see below), whose sum is σ = 306246159912. Its totient is φ = 204164106600.

The previous prime is 255205133251. The next prime is 255205133297. The reversal of 255205133255 is 552331502552.

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

It is not a de Polignac number, because 255205133255 - 2² = 255205133251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255205133251) by changing a digit.

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, 25520513321 + ... + 25520513330.

It is an arithmetic number, because the mean of its divisors is an integer number (76561539978).

Almost surely, 2^255205133255 is an apocalyptic number.

255205133255 is a deficient number, since it is larger than the sum of its proper divisors (51041026657).

255205133255 is an equidigital number, since it uses as much as digits as its factorization.

255205133255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51041026656.

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 255205133255 in words is "two hundred fifty-five billion, two hundred five million, one hundred thirty-three thousand, two hundred fifty-five".