22055256 has 96 divisors (see below), whose sum is σ = 65089440. Its totient is φ = 6718464.

The previous prime is 22055249. The next prime is 22055281. The reversal of 22055256 is 65255022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45045 + ... + 45531.

It is an arithmetic number, because the mean of its divisors is an integer number (678015).

Almost surely, 2^22055256 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 22055256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32544720).

22055256 is an abundant number, since it is smaller than the sum of its proper divisors (43034184).

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

22055256 is a wasteful number, since it uses less digits than its factorization.

22055256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 22055256 is about 4696.3023752736. The cubic root of 22055256 is about 280.4383270666.

The spelling of 22055256 in words is "twenty-two million, fifty-five thousand, two hundred fifty-six".