22455552 has 72 divisors (see below), whose sum is σ = 68318656. Its totient is φ = 6414336.

The previous prime is 22455551. The next prime is 22455557. The reversal of 22455552 is 25555422.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22455551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3288 + ... + 7464.

Almost surely, 2^22455552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22455552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34159328).

22455552 is an abundant number, since it is smaller than the sum of its proper divisors (45863104).

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

22455552 is an equidigital number, since it uses as much as digits as its factorization.

22455552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203 (or 4189 counting only the distinct ones).

The product of its digits is 20000, while the sum is 30.

The square root of 22455552 is about 4738.7289435037. The cubic root of 22455552 is about 282.1247875870.

The spelling of 22455552 in words is "twenty-two million, four hundred fifty-five thousand, five hundred fifty-two".