22553472 has 32 divisors (see below), whose sum is σ = 59908680. Its totient is φ = 7517696.

The previous prime is 22553449. The next prime is 22553483. The reversal of 22553472 is 27435522.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28983 + ... + 29750.

Almost surely, 2^22553472 is an apocalyptic number.

It is an amenable number.

22553472 is an abundant number, since it is smaller than the sum of its proper divisors (37355208).

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

22553472 is an equidigital number, since it uses as much as digits as its factorization.

22553472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58750 (or 58738 counting only the distinct ones).

The product of its digits is 16800, while the sum is 30.

The square root of 22553472 is about 4749.0495891283. The cubic root of 22553472 is about 282.5342720840.

Adding to 22553472 its reverse (27435522), we get a palindrome (49988994).

The spelling of 22553472 in words is "twenty-two million, five hundred fifty-three thousand, four hundred seventy-two".