13551205505 has 8 divisors (see below), whose sum is σ = 16263158400. Its totient is φ = 10839823216.

The previous prime is 13551205483. The next prime is 13551205531. The reversal of 13551205505 is 50550215531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13551205505 - 2¹⁰ = 13551204481 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 88535 + ... + 186924.

It is an arithmetic number, because the mean of its divisors is an integer number (2032894800).

Almost surely, 2^13551205505 is an apocalyptic number.

It is an amenable number.

13551205505 is a deficient number, since it is larger than the sum of its proper divisors (2711952895).

13551205505 is an equidigital number, since it uses as much as digits as its factorization.

13551205505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285303.

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 13551205505 in words is "thirteen billion, five hundred fifty-one million, two hundred five thousand, five hundred five".