22155056 has 80 divisors (see below), whose sum is σ = 54758400. Its totient is φ = 8608320.

The previous prime is 22155011. The next prime is 22155059. The reversal of 22155056 is 65055122.

It is not an unprimeable number, because it can be changed into a prime (22155059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60185 + ... + 60551.

It is an arithmetic number, because the mean of its divisors is an integer number (684480).

Almost surely, 2^22155056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22155056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27379200).

22155056 is an abundant number, since it is smaller than the sum of its proper divisors (32603344).

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

22155056 is a wasteful number, since it uses less digits than its factorization.

22155056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 22155056 is about 4706.9157630024. The cubic root of 22155056 is about 280.8606849845.

The spelling of 22155056 in words is "twenty-two million, one hundred fifty-five thousand, fifty-six".