13551422657 has 2 divisors, whose sum is σ = 13551422658. Its totient is φ = 13551422656.

The previous prime is 13551422639. The next prime is 13551422659. The reversal of 13551422657 is 75622415531.

13551422657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13178121616 + 373301041 = 114796^2 + 19321^2 .

It is a cyclic number.

It is not a de Polignac number, because 13551422657 - 2²⁰ = 13550374081 is a prime.

Together with 13551422659, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13551422659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775711328 + 6775711329.

It is an arithmetic number, because the mean of its divisors is an integer number (6775711329).

Almost surely, 2^13551422657 is an apocalyptic number.

It is an amenable number.

13551422657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13551422657 is an equidigital number, since it uses as much as digits as its factorization.

13551422657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 41.

The spelling of 13551422657 in words is "thirteen billion, five hundred fifty-one million, four hundred twenty-two thousand, six hundred fifty-seven".