255533318841 has 4 divisors (see below), whose sum is σ = 340711091792. Its totient is φ = 170355545892.

The previous prime is 255533318839. The next prime is 255533318863. The reversal of 255533318841 is 148813335552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 255533318841 - 2¹ = 255533318839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255533318801) 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, 42588886471 + ... + 42588886476.

It is an arithmetic number, because the mean of its divisors is an integer number (85177772948).

Almost surely, 2^255533318841 is an apocalyptic number.

It is an amenable number.

255533318841 is a deficient number, since it is larger than the sum of its proper divisors (85177772951).

255533318841 is an equidigital number, since it uses as much as digits as its factorization.

255533318841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85177772950.

The product of its digits is 1728000, while the sum is 48.

The spelling of 255533318841 in words is "two hundred fifty-five billion, five hundred thirty-three million, three hundred eighteen thousand, eight hundred forty-one".