13553614447 has 2 divisors, whose sum is σ = 13553614448. Its totient is φ = 13553614446.

The previous prime is 13553614433. The next prime is 13553614457. The reversal of 13553614447 is 74441635531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13553614447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13553614457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6776807223 + 6776807224.

It is an arithmetic number, because the mean of its divisors is an integer number (6776807224).

Almost surely, 2^13553614447 is an apocalyptic number.

13553614447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13553614447 is an equidigital number, since it uses as much as digits as its factorization.

13553614447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The spelling of 13553614447 in words is "thirteen billion, five hundred fifty-three million, six hundred fourteen thousand, four hundred forty-seven".