2556352321333 has 2 divisors, whose sum is σ = 2556352321334. Its totient is φ = 2556352321332.

The previous prime is 2556352321331. The next prime is 2556352321343. The reversal of 2556352321333 is 3331232536552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1897776249604 + 658576071729 = 1377598^2 + 811527^2 .

It is a cyclic number.

It is not a de Polignac number, because 2556352321333 - 2¹ = 2556352321331 is a prime.

Together with 2556352321331, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2556352321333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2556352321331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278176160666 + 1278176160667.

It is an arithmetic number, because the mean of its divisors is an integer number (1278176160667).

Almost surely, 2^{2556352321333} is an apocalyptic number.

It is an amenable number.

2556352321333 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556352321333 is an equidigital number, since it uses as much as digits as its factorization.

2556352321333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458000, while the sum is 43.

Adding to 2556352321333 its reverse (3331232536552), we get a palindrome (5887584857885).

The spelling of 2556352321333 in words is "two trillion, five hundred fifty-six billion, three hundred fifty-two million, three hundred twenty-one thousand, three hundred thirty-three".