22421552 has 20 divisors (see below), whose sum is σ = 43605096. Its totient is φ = 11168640.

The previous prime is 22421551. The next prime is 22421561. The reversal of 22421552 is 25512422.

It is not an unprimeable number, because it can be changed into a prime (22421551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003 + ... + 6989.

Almost surely, 2^22421552 is an apocalyptic number.

It is an amenable number.

22421552 is a deficient number, since it is larger than the sum of its proper divisors (21183544).

22421552 is a wasteful number, since it uses less digits than its factorization.

22421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5276 (or 5270 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 22421552 is about 4735.1401246426. The cubic root of 22421552 is about 281.9823270785.

Adding to 22421552 its reverse (25512422), we get a palindrome (47933974).

The spelling of 22421552 in words is "twenty-two million, four hundred twenty-one thousand, five hundred fifty-two".