2021252 has 6 divisors (see below), whose sum is σ = 3537198. Its totient is φ = 1010624.

The previous prime is 2021251. The next prime is 2021291. The reversal of 2021252 is 2521202.

It can be written as a sum of positive squares in only one way, i.e., 1406596 + 614656 = 1186^2 + 784^2 .

It is not an unprimeable number, because it can be changed into a prime (2021251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252653 + ... + 252660.

It is an arithmetic number, because the mean of its divisors is an integer number (589533).

2^2021252 is an apocalyptic number.

It is an amenable number.

2021252 is a deficient number, since it is larger than the sum of its proper divisors (1515946).

2021252 is a wasteful number, since it uses less digits than its factorization.

2021252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505317 (or 505315 counting only the distinct ones).

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

The square root of 2021252 is about 1421.7074241911. The cubic root of 2021252 is about 126.4367976238.

Adding to 2021252 its reverse (2521202), we get a palindrome (4542454).

The spelling of 2021252 in words is "two million, twenty-one thousand, two hundred fifty-two".