20227552 has 72 divisors (see below), whose sum is σ = 44933616. Its totient is φ = 8930304.

The previous prime is 20227523. The next prime is 20227553. The reversal of 20227552 is 25572202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20227553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196333 + ... + 196435.

It is an arithmetic number, because the mean of its divisors is an integer number (624078).

Almost surely, 2^20227552 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 20227552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22466808).

20227552 is an abundant number, since it is smaller than the sum of its proper divisors (24706064).

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

20227552 is a wasteful number, since it uses less digits than its factorization.

20227552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 20227552 is about 4497.5050861561. The cubic root of 20227552 is about 272.4673338505.

Adding to 20227552 its reverse (25572202), we get a palindrome (45799754).

The spelling of 20227552 in words is "twenty million, two hundred twenty-seven thousand, five hundred fifty-two".