13505455 has 4 divisors (see below), whose sum is σ = 16206552. Its totient is φ = 10804360.

The previous prime is 13505449. The next prime is 13505501. The reversal of 13505455 is 55450531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13505455 - 2⁵ = 13505423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1350541 + ... + 1350550.

It is an arithmetic number, because the mean of its divisors is an integer number (4051638).

Almost surely, 2^13505455 is an apocalyptic number.

13505455 is a deficient number, since it is larger than the sum of its proper divisors (2701097).

13505455 is an equidigital number, since it uses as much as digits as its factorization.

13505455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701096.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 13505455 is about 3674.9768706755. The cubic root of 13505455 is about 238.1422248570.

Adding to 13505455 its reverse (55450531), we get a palindrome (68955986).

The spelling of 13505455 in words is "thirteen million, five hundred five thousand, four hundred fifty-five".