20036252 has 6 divisors (see below), whose sum is σ = 35063448. Its totient is φ = 10018124.

The previous prime is 20036239. The next prime is 20036257. The reversal of 20036252 is 25263002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20036257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2504528 + ... + 2504535.

It is an arithmetic number, because the mean of its divisors is an integer number (5843908).

Almost surely, 2^20036252 is an apocalyptic number.

It is an amenable number.

20036252 is a deficient number, since it is larger than the sum of its proper divisors (15027196).

20036252 is a wasteful number, since it uses less digits than its factorization.

20036252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009067 (or 5009065 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20036252 is about 4476.1872168175. The cubic root of 20036252 is about 271.6056677797.

Adding to 20036252 its reverse (25263002), we get a palindrome (45299254).

The spelling of 20036252 in words is "twenty million, thirty-six thousand, two hundred fifty-two".