22253544 has 48 divisors (see below), whose sum is σ = 63818820. Its totient is φ = 6981120.

The previous prime is 22253521. The next prime is 22253551. The reversal of 22253544 is 44535222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18404100 + 3849444 = 4290^2 + 1962^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7867 + ... + 10314.

Almost surely, 2^22253544 is an apocalyptic number.

22253544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22253544 is an abundant number, since it is smaller than the sum of its proper divisors (41565276).

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

22253544 is a wasteful number, since it uses less digits than its factorization.

22253544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18210 (or 18203 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 22253544 is about 4717.3662143192. The cubic root of 22253544 is about 281.2762488094.

Adding to 22253544 its reverse (44535222), we get a palindrome (66788766).

The spelling of 22253544 in words is "twenty-two million, two hundred fifty-three thousand, five hundred forty-four".