22523116 has 24 divisors (see below), whose sum is σ = 49142016. Its totient is φ = 8775120.

The previous prime is 22523089. The next prime is 22523119. The reversal of 22523116 is 61132522.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (22523119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36256 + ... + 36871.

It is an arithmetic number, because the mean of its divisors is an integer number (2047584).

Almost surely, 2^22523116 is an apocalyptic number.

It is an amenable number.

22523116 is an abundant number, since it is smaller than the sum of its proper divisors (26618900).

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

22523116 is a wasteful number, since it uses less digits than its factorization.

22523116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73149 (or 73147 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 22523116 is about 4745.8525050827. The cubic root of 22523116 is about 282.4074555247.

Adding to 22523116 its reverse (61132522), we get a palindrome (83655638).

The spelling of 22523116 in words is "twenty-two million, five hundred twenty-three thousand, one hundred sixteen".