13455571 has 4 divisors (see below), whose sum is σ = 13581432. Its totient is φ = 13329712.

The previous prime is 13455539. The next prime is 13455577. The reversal of 13455571 is 17555431.

13455571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17555431 = 109 ⋅161059.

It is a cyclic number.

It is not a de Polignac number, because 13455571 - 2⁵ = 13455539 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13455577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62770 + ... + 62983.

It is an arithmetic number, because the mean of its divisors is an integer number (3395358).

Almost surely, 2^13455571 is an apocalyptic number.

13455571 is a deficient number, since it is larger than the sum of its proper divisors (125861).

13455571 is a wasteful number, since it uses less digits than its factorization.

13455571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125860.

The product of its digits is 10500, while the sum is 31.

The square root of 13455571 is about 3668.1836104535. The cubic root of 13455571 is about 237.8486609371.

The spelling of 13455571 in words is "thirteen million, four hundred fifty-five thousand, five hundred seventy-one".