13563222 has 16 divisors (see below), whose sum is σ = 27179712. Its totient is φ = 4512200.

The previous prime is 13563211. The next prime is 13563223. The reversal of 13563222 is 22236531.

It is a junction number, because it is equal to n+sod(n) for n = 13563192 and 13563201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13563223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597 + ... + 5447.

It is an arithmetic number, because the mean of its divisors is an integer number (1698732).

Almost surely, 2^13563222 is an apocalyptic number.

13563222 is an abundant number, since it is smaller than the sum of its proper divisors (13616490).

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

13563222 is a wasteful number, since it uses less digits than its factorization.

13563222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443.

The product of its digits is 2160, while the sum is 24.

The square root of 13563222 is about 3682.8279894668. The cubic root of 13563222 is about 238.4812778398.

Adding to 13563222 its reverse (22236531), we get a palindrome (35799753).

The spelling of 13563222 in words is "thirteen million, five hundred sixty-three thousand, two hundred twenty-two".