13553215349 has 2 divisors, whose sum is σ = 13553215350. Its totient is φ = 13553215348.

The previous prime is 13553215331. The next prime is 13553215363. The reversal of 13553215349 is 94351235531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13272652849 + 280562500 = 115207^2 + 16750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13553215349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13553215309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6776607674 + 6776607675.

It is an arithmetic number, because the mean of its divisors is an integer number (6776607675).

Almost surely, 2^13553215349 is an apocalyptic number.

It is an amenable number.

13553215349 is a deficient number, since it is larger than the sum of its proper divisors (1).

13553215349 is an equidigital number, since it uses as much as digits as its factorization.

13553215349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243000, while the sum is 41.

The spelling of 13553215349 in words is "thirteen billion, five hundred fifty-three million, two hundred fifteen thousand, three hundred forty-nine".