22553300 has 144 divisors (see below), whose sum is σ = 63745920. Its totient is φ = 6720000.

The previous prime is 22553291. The next prime is 22553359. The reversal of 22553300 is 335522.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223250 + ... + 223350.

It is an arithmetic number, because the mean of its divisors is an integer number (442680).

Almost surely, 2^22553300 is an apocalyptic number.

22553300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22553300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31872960).

22553300 is an abundant number, since it is smaller than the sum of its proper divisors (41192620).

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

22553300 is a wasteful number, since it uses less digits than its factorization.

22553300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 22553300 is about 4749.0314802073. The cubic root of 22553300 is about 282.5335538499.

Adding to 22553300 its reverse (335522), we get a palindrome (22888822).

It can be divided in two parts, 2255 and 3300, that added together give a palindrome (5555).

The spelling of 22553300 in words is "twenty-two million, five hundred fifty-three thousand, three hundred".