23551122 has 32 divisors (see below), whose sum is σ = 54237312. Its totient is φ = 6678144.

The previous prime is 23551111. The next prime is 23551123. The reversal of 23551122 is 22115532.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (23551123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3708 + ... + 7800.

It is an arithmetic number, because the mean of its divisors is an integer number (1694916).

Almost surely, 2^23551122 is an apocalyptic number.

23551122 is an abundant number, since it is smaller than the sum of its proper divisors (30686190).

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

23551122 is a wasteful number, since it uses less digits than its factorization.

23551122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4242.

The product of its digits is 600, while the sum is 21.

The square root of 23551122 is about 4852.9498245912. The cubic root of 23551122 is about 286.6402676850.

Adding to 23551122 its reverse (22115532), we get a palindrome (45666654).

The spelling of 23551122 in words is "twenty-three million, five hundred fifty-one thousand, one hundred twenty-two".