13054885561 has 2 divisors, whose sum is σ = 13054885562. Its totient is φ = 13054885560.

The previous prime is 13054885559. The next prime is 13054885589. The reversal of 13054885561 is 16558845031.

13054885561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12966149161 + 88736400 = 113869^2 + 9420^2 .

It is a cyclic number.

It is not a de Polignac number, because 13054885561 - 2¹ = 13054885559 is a prime.

Together with 13054885559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13054885061) 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, 6527442780 + 6527442781.

It is an arithmetic number, because the mean of its divisors is an integer number (6527442781).

Almost surely, 2^13054885561 is an apocalyptic number.

It is an amenable number.

13054885561 is a deficient number, since it is larger than the sum of its proper divisors (1).

13054885561 is an equidigital number, since it uses as much as digits as its factorization.

13054885561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 13054885561 in words is "thirteen billion, fifty-four million, eight hundred eighty-five thousand, five hundred sixty-one".