23551422 has 16 divisors (see below), whose sum is σ = 48727440. Its totient is φ = 7579712.

The previous prime is 23551399. The next prime is 23551433. The reversal of 23551422 is 22415532.

It is a junction number, because it is equal to n+sod(n) for n = 23551392 and 23551401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67503 + ... + 67850.

It is an arithmetic number, because the mean of its divisors is an integer number (3045465).

Almost surely, 2^23551422 is an apocalyptic number.

23551422 is an abundant number, since it is smaller than the sum of its proper divisors (25176018).

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

23551422 is a wasteful number, since it uses less digits than its factorization.

23551422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135387.

The product of its digits is 2400, while the sum is 24.

The square root of 23551422 is about 4852.9807335286. The cubic root of 23551422 is about 286.6414847780.

Adding to 23551422 its reverse (22415532), we get a palindrome (45966954).

The spelling of 23551422 in words is "twenty-three million, five hundred fifty-one thousand, four hundred twenty-two".