13505055555 has 8 divisors (see below), whose sum is σ = 21608088912. Its totient is φ = 7202696288.

The previous prime is 13505055539. The next prime is 13505055601. The reversal of 13505055555 is 55555050531.

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 13505055555 - 2⁴ = 13505055539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450168504 + ... + 450168533.

It is an arithmetic number, because the mean of its divisors is an integer number (2701011114).

Almost surely, 2^13505055555 is an apocalyptic number.

13505055555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13505055555 is a deficient number, since it is larger than the sum of its proper divisors (8103033357).

13505055555 is an equidigital number, since it uses as much as digits as its factorization.

13505055555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900337045.

The product of its (nonzero) digits is 234375, while the sum is 39.

The spelling of 13505055555 in words is "thirteen billion, five hundred five million, fifty-five thousand, five hundred fifty-five".