22250088 has 96 divisors (see below), whose sum is σ = 69600960. Its totient is φ = 6289920.

The previous prime is 22250087. The next prime is 22250099. The reversal of 22250088 is 88005222.

It is a Cunningham number, because it is equal to 4717²-1.

It is not an unprimeable number, because it can be changed into a prime (22250087) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65856 + ... + 66192.

It is an arithmetic number, because the mean of its divisors is an integer number (725010).

Almost surely, 2^22250088 is an apocalyptic number.

22250088 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22250088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34800480).

22250088 is an abundant number, since it is smaller than the sum of its proper divisors (47350872).

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

22250088 is a wasteful number, since it uses less digits than its factorization.

22250088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 22250088 is about 4716.9998940004. Note that the first 3 decimals coincide. The cubic root of 22250088 is about 281.2616872180.

The spelling of 22250088 in words is "twenty-two million, two hundred fifty thousand, eighty-eight".