13505463 has 24 divisors (see below), whose sum is σ = 20880288. Its totient is φ = 8381952.

The previous prime is 13505449. The next prime is 13505501. The reversal of 13505463 is 36450531.

It is not a de Polignac number, because 13505463 - 2⁵ = 13505431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15331 + ... + 16187.

It is an arithmetic number, because the mean of its divisors is an integer number (870012).

Almost surely, 2^13505463 is an apocalyptic number.

13505463 is a deficient number, since it is larger than the sum of its proper divisors (7374825).

13505463 is a wasteful number, since it uses less digits than its factorization.

13505463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 13505463 is about 3674.9779591176. The cubic root of 13505463 is about 238.1422718784.

Adding to 13505463 its reverse (36450531), we get a palindrome (49955994).

The spelling of 13505463 in words is "thirteen million, five hundred five thousand, four hundred sixty-three".