22561316 has 24 divisors (see below), whose sum is σ = 41319936. Its totient is φ = 10767680.

The previous prime is 22561313. The next prime is 22561337. The reversal of 22561316 is 61316522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22561313) 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, 6245 + ... + 9171.

It is an arithmetic number, because the mean of its divisors is an integer number (1721664).

Almost surely, 2^22561316 is an apocalyptic number.

It is an amenable number.

22561316 is a deficient number, since it is larger than the sum of its proper divisors (18758620).

22561316 is a wasteful number, since it uses less digits than its factorization.

22561316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3019 (or 3017 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 22561316 is about 4749.8753667860. The cubic root of 22561316 is about 282.5670230199.

Adding to 22561316 its reverse (61316522), we get a palindrome (83877838).

The spelling of 22561316 in words is "twenty-two million, five hundred sixty-one thousand, three hundred sixteen".