22000552 has 32 divisors (see below), whose sum is σ = 47750400. Its totient is φ = 9307584.

The previous prime is 22000529. The next prime is 22000553. The reversal of 22000552 is 25500022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000553) 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, 1938 + ... + 6910.

It is an arithmetic number, because the mean of its divisors is an integer number (1492200).

Almost surely, 2^22000552 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 22000552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23875200).

22000552 is an abundant number, since it is smaller than the sum of its proper divisors (25749848).

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

22000552 is a wasteful number, since it uses less digits than its factorization.

22000552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065 (or 5061 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 22000552 is about 4690.4746028520. The cubic root of 22000552 is about 280.2062765697.

Adding to 22000552 its reverse (25500022), we get a palindrome (47500574).

The spelling of 22000552 in words is "twenty-two million, five hundred fifty-two", and thus it is an aban number.