22815056 has 20 divisors (see below), whose sum is σ = 48223104. Its totient is φ = 10370400.

The previous prime is 22815053. The next prime is 22815059. The reversal of 22815056 is 65051822.

It is an interprime number because it is at equal distance from previous prime (22815053) and next prime (22815059).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22815053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64640 + ... + 64991.

Almost surely, 2^22815056 is an apocalyptic number.

It is an amenable number.

22815056 is an abundant number, since it is smaller than the sum of its proper divisors (25408048).

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

22815056 is a wasteful number, since it uses less digits than its factorization.

22815056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129650 (or 129644 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 22815056 is about 4776.5108604503. The cubic root of 22815056 is about 283.6223904319.

Adding to 22815056 its reverse (65051822), we get a palindrome (87866878).

It can be divided in two parts, 2281 and 5056, that added together give a palindrome (7337).

The spelling of 22815056 in words is "twenty-two million, eight hundred fifteen thousand, fifty-six".