255321716441 has 4 divisors (see below), whose sum is σ = 278532781584. Its totient is φ = 232110651300.

The previous prime is 255321716413. The next prime is 255321716473. The reversal of 255321716441 is 144617123552.

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 255321716441 - 2¹⁰ = 255321715417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255321716401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11605532555 + ... + 11605532576.

It is an arithmetic number, because the mean of its divisors is an integer number (69633195396).

Almost surely, 2^255321716441 is an apocalyptic number.

It is an amenable number.

255321716441 is a deficient number, since it is larger than the sum of its proper divisors (23211065143).

255321716441 is a wasteful number, since it uses less digits than its factorization.

255321716441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23211065142.

The product of its digits is 201600, while the sum is 41.

Adding to 255321716441 its reverse (144617123552), we get a palindrome (399938839993).

The spelling of 255321716441 in words is "two hundred fifty-five billion, three hundred twenty-one million, seven hundred sixteen thousand, four hundred forty-one".