22125056 has 40 divisors (see below), whose sum is σ = 44848320. Its totient is φ = 10902528.

The previous prime is 22125053. The next prime is 22125083. The reversal of 22125056 is 65052122.

It is not an unprimeable number, because it can be changed into a prime (22125053) 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, 40175 + ... + 40721.

It is an arithmetic number, because the mean of its divisors is an integer number (1121208).

Almost surely, 2^22125056 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 22125056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22424160).

22125056 is an abundant number, since it is smaller than the sum of its proper divisors (22723264).

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

22125056 is an frugal number, since it uses more digits than its factorization.

22125056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 22125056 is about 4703.7278832858. The cubic root of 22125056 is about 280.7338572523.

Adding to 22125056 its reverse (65052122), we get a palindrome (87177178).

The spelling of 22125056 in words is "twenty-two million, one hundred twenty-five thousand, fifty-six".