13520523559 has 2 divisors, whose sum is σ = 13520523560. Its totient is φ = 13520523558.

The previous prime is 13520523517. The next prime is 13520523587. The reversal of 13520523559 is 95532502531.

It is a happy number.

13520523559 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 is a cyclic number.

It is not a de Polignac number, because 13520523559 - 2⁷ = 13520523431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13520523259) 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, 6760261779 + 6760261780.

It is an arithmetic number, because the mean of its divisors is an integer number (6760261780).

Almost surely, 2^13520523559 is an apocalyptic number.

13520523559 is a deficient number, since it is larger than the sum of its proper divisors (1).

13520523559 is an equidigital number, since it uses as much as digits as its factorization.

13520523559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 202500, while the sum is 40.

The spelling of 13520523559 in words is "thirteen billion, five hundred twenty million, five hundred twenty-three thousand, five hundred fifty-nine".