22650056 has 48 divisors (see below), whose sum is σ = 50200560. Its totient is φ = 9497280.

The previous prime is 22650037. The next prime is 22650077. The reversal of 22650056 is 65005622.

22650056 = 743² + 744² + ... + 781².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14111 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (1045845).

Almost surely, 2^22650056 is an apocalyptic number.

22650056 is a gapful number since it is divisible by the number (26) 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 22650056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25100280).

22650056 is an abundant number, since it is smaller than the sum of its proper divisors (27550504).

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

22650056 is a wasteful number, since it uses less digits than its factorization.

22650056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566 (or 1549 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 22650056 is about 4759.2074970524. The cubic root of 22650056 is about 282.9370102081.

Adding to 22650056 its reverse (65005622), we get a palindrome (87655678).

The spelling of 22650056 in words is "twenty-two million, six hundred fifty thousand, fifty-six".