20112544 has 24 divisors (see below), whose sum is σ = 40963860. Its totient is φ = 9709056.

The previous prime is 20112541. The next prime is 20112601. The reversal of 20112544 is 44521102.

It can be written as a sum of positive squares in 2 ways, for example, as 17740944 + 2371600 = 4212^2 + 1540^2 .

It is not an unprimeable number, because it can be changed into a prime (20112541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9909 + ... + 11764.

Almost surely, 2^20112544 is an apocalyptic number.

It is an amenable number.

20112544 is an abundant number, since it is smaller than the sum of its proper divisors (20851316).

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

20112544 is a wasteful number, since it uses less digits than its factorization.

20112544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21712 (or 21704 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 20112544 is about 4484.7011048675. The cubic root of 20112544 is about 271.9499619603.

Adding to 20112544 its reverse (44521102), we get a palindrome (64633646).

The spelling of 20112544 in words is "twenty million, one hundred twelve thousand, five hundred forty-four".