22550808 has 64 divisors (see below), whose sum is σ = 64800000. Its totient is φ = 6406272.

The previous prime is 22550783. The next prime is 22550809. The reversal of 22550808 is 80805522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22550809) 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, 44943 + ... + 45441.

It is an arithmetic number, because the mean of its divisors is an integer number (1012500).

Almost surely, 2^22550808 is an apocalyptic number.

22550808 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 22550808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32400000).

22550808 is an abundant number, since it is smaller than the sum of its proper divisors (42249192).

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

22550808 is a wasteful number, since it uses less digits than its factorization.

22550808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 780 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 22550808 is about 4748.7691036731. The cubic root of 22550808 is about 282.5231473972.

The spelling of 22550808 in words is "twenty-two million, five hundred fifty thousand, eight hundred eight".