20210252 has 6 divisors (see below), whose sum is σ = 35367948. Its totient is φ = 10105124.

The previous prime is 20210237. The next prime is 20210257. The reversal of 20210252 is 25201202.

It is not an unprimeable number, because it can be changed into a prime (20210257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526278 + ... + 2526285.

It is an arithmetic number, because the mean of its divisors is an integer number (5894658).

Almost surely, 2^20210252 is an apocalyptic number.

It is an amenable number.

20210252 is a deficient number, since it is larger than the sum of its proper divisors (15157696).

20210252 is a wasteful number, since it uses less digits than its factorization.

20210252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052567 (or 5052565 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20210252 is about 4495.5813862058. The cubic root of 20210252 is about 272.3896340652.

Adding to 20210252 its reverse (25201202), we get a palindrome (45411454).

The spelling of 20210252 in words is "twenty million, two hundred ten thousand, two hundred fifty-two".