22715056 has 40 divisors (see below), whose sum is σ = 54170144. Its totient is φ = 8985600.

The previous prime is 22715041. The next prime is 22715083. The reversal of 22715056 is 65051722.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6345 + ... + 9256.

Almost surely, 2^22715056 is an apocalyptic number.

22715056 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22715056 is an abundant number, since it is smaller than the sum of its proper divisors (31455088).

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

22715056 is a wasteful number, since it uses less digits than its factorization.

22715056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15629 (or 15623 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 22715056 is about 4766.0314728294. The cubic root of 22715056 is about 283.2074045539.

Adding to 22715056 its reverse (65051722), we get a palindrome (87766778).

The spelling of 22715056 in words is "twenty-two million, seven hundred fifteen thousand, fifty-six".