13505424587 has 2 divisors, whose sum is σ = 13505424588. Its totient is φ = 13505424586.

The previous prime is 13505424551. The next prime is 13505424589. The reversal of 13505424587 is 78542450531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13505424587 - 2¹⁸ = 13505162443 is a prime.

Together with 13505424589, 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 (13505424589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752712293 + 6752712294.

It is an arithmetic number, because the mean of its divisors is an integer number (6752712294).

Almost surely, 2^13505424587 is an apocalyptic number.

13505424587 is a deficient number, since it is larger than the sum of its proper divisors (1).

13505424587 is an equidigital number, since it uses as much as digits as its factorization.

13505424587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672000, while the sum is 44.

The spelling of 13505424587 in words is "thirteen billion, five hundred five million, four hundred twenty-four thousand, five hundred eighty-seven".