13505531004505 has 32 divisors (see below), whose sum is σ = 17305010712576. Its totient is φ = 10083011549184.

The previous prime is 13505531004487. The next prime is 13505531004541. The reversal of 13505531004505 is 50540013550531.

It is a cyclic number.

It is not a de Polignac number, because 13505531004505 - 2¹⁷ = 13505530873433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18500797 + ... + 19216933.

It is an arithmetic number, because the mean of its divisors is an integer number (540781584768).

Almost surely, 2^{13505531004505} is an apocalyptic number.

It is an amenable number.

13505531004505 is a deficient number, since it is larger than the sum of its proper divisors (3799479708071).

13505531004505 is a wasteful number, since it uses less digits than its factorization.

13505531004505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718033.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 13505531004505 in words is "thirteen trillion, five hundred five billion, five hundred thirty-one million, four thousand, five hundred five".