22502656 has 72 divisors (see below), whose sum is σ = 50184288. Its totient is φ = 9984000.

The previous prime is 22502651. The next prime is 22502677. The reversal of 22502656 is 65620522.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22502651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171711 + ... + 171841.

It is an arithmetic number, because the mean of its divisors is an integer number (697004).

Almost surely, 2^22502656 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 22502656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25092144).

22502656 is an abundant number, since it is smaller than the sum of its proper divisors (27681632).

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

22502656 is a wasteful number, since it uses less digits than its factorization.

22502656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 22502656 is about 4743.6964489731. The cubic root of 22502656 is about 282.3219166348.

The spelling of 22502656 in words is "twenty-two million, five hundred two thousand, six hundred fifty-six".