13503441557 has 2 divisors, whose sum is σ = 13503441558. Its totient is φ = 13503441556.

The previous prime is 13503441551. The next prime is 13503441583. The reversal of 13503441557 is 75514430531.

It is a happy number.

13503441557 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., 7333181956 + 6170259601 = 85634^2 + 78551^2 .

It is a cyclic number.

It is not a de Polignac number, because 13503441557 - 2¹⁶ = 13503376021 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13503441557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13503441551) 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, 6751720778 + 6751720779.

It is an arithmetic number, because the mean of its divisors is an integer number (6751720779).

Almost surely, 2^13503441557 is an apocalyptic number.

It is an amenable number.

13503441557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13503441557 is an equidigital number, since it uses as much as digits as its factorization.

13503441557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 38.

The spelling of 13503441557 in words is "thirteen billion, five hundred three million, four hundred forty-one thousand, five hundred fifty-seven".