5533313344621 has 2 divisors, whose sum is σ = 5533313344622. Its totient is φ = 5533313344620.

The previous prime is 5533313344619. The next prime is 5533313344639. The reversal of 5533313344621 is 1264433133355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5527252722121 + 6060622500 = 2351011^2 + 77850^2 .

It is a cyclic number.

It is not a de Polignac number, because 5533313344621 - 2¹ = 5533313344619 is a prime.

Together with 5533313344619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5533313344651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2766656672310 + 2766656672311.

It is an arithmetic number, because the mean of its divisors is an integer number (2766656672311).

Almost surely, 2^{5533313344621} is an apocalyptic number.

It is an amenable number.

5533313344621 is a deficient number, since it is larger than the sum of its proper divisors (1).

5533313344621 is an equidigital number, since it uses as much as digits as its factorization.

5533313344621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 43.

Adding to 5533313344621 its reverse (1264433133355), we get a palindrome (6797746477976).

The spelling of 5533313344621 in words is "five trillion, five hundred thirty-three billion, three hundred thirteen million, three hundred forty-four thousand, six hundred twenty-one".