13563416 has 64 divisors (see below), whose sum is σ = 29484000. Its totient is φ = 5806080.

The previous prime is 13563409. The next prime is 13563419. The reversal of 13563416 is 61436531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13563419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74846 + ... + 75026.

Almost surely, 2^13563416 is an apocalyptic number.

It is an amenable number.

13563416 is an abundant number, since it is smaller than the sum of its proper divisors (15920584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13563416 is a wasteful number, since it uses less digits than its factorization.

13563416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 248 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 13563416 is about 3682.8543278278. The cubic root of 13563416 is about 238.4824148643.

Adding to 13563416 its reverse (61436531), we get a palindrome (74999947).

The spelling of 13563416 in words is "thirteen million, five hundred sixty-three thousand, four hundred sixteen".