20063536 has 30 divisors (see below), whose sum is σ = 41303780. Its totient is φ = 9439488.

The previous prime is 20063503. The next prime is 20063557. The reversal of 20063536 is 63536002.

It is a self number, because there is not a number n which added to its sum of digits gives 20063536.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2455 + ... + 6793.

Almost surely, 2^20063536 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 20063536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20651890).

20063536 is an abundant number, since it is smaller than the sum of its proper divisors (21240244).

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

20063536 is a wasteful number, since it uses less digits than its factorization.

20063536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 20063536 is about 4479.2338630619. The cubic root of 20063536 is about 271.7288965466.

Adding to 20063536 its reverse (63536002), we get a palindrome (83599538).

It can be divided in two parts, 200 and 63536, that added together give a palindrome (63736).

The spelling of 20063536 in words is "twenty million, sixty-three thousand, five hundred thirty-six".