22550424 has 32 divisors (see below), whose sum is σ = 60713520. Its totient is φ = 6938496.

The previous prime is 22550413. The next prime is 22550441. The reversal of 22550424 is 42405522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 22550394 and 22550403.

It is a congruent number.

It is an unprimeable number.

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, 35827 + ... + 36450.

Almost surely, 2^22550424 is an apocalyptic number.

22550424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22550424 is an abundant number, since it is smaller than the sum of its proper divisors (38163096).

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

22550424 is a wasteful number, since it uses less digits than its factorization.

22550424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72299 (or 72295 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 22550424 is about 4748.7286719711. The cubic root of 22550424 is about 282.5215437665.

Adding to 22550424 its reverse (42405522), we get a palindrome (64955946).

The spelling of 22550424 in words is "twenty-two million, five hundred fifty thousand, four hundred twenty-four".