20650252 has 12 divisors (see below), whose sum is σ = 41300560. Its totient is φ = 8850096.

The previous prime is 20650237. The next prime is 20650303. The reversal of 20650252 is 25205602.

20650252 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 368727 + ... + 368782.

Almost surely, 2^20650252 is an apocalyptic number.

It is an amenable number.

20650252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20650252 is a wasteful number, since it uses less digits than its factorization.

20650252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737520 (or 737518 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20650252 is about 4544.2548344035. The cubic root of 20650252 is about 274.3522030551.

Adding to 20650252 its reverse (25205602), we get a palindrome (45855854).

It can be divided in two parts, 20650 and 252, that added together give a palindrome (20902).

The spelling of 20650252 in words is "twenty million, six hundred fifty thousand, two hundred fifty-two".