202020253 has 2 divisors, whose sum is σ = 202020254. Its totient is φ = 202020252.

The previous prime is 202020193. The next prime is 202020271. The reversal of 202020253 is 352020202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113998329 + 88021924 = 10677^2 + 9382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202020253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202020353) 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, 101010126 + 101010127.

It is an arithmetic number, because the mean of its divisors is an integer number (101010127).

Almost surely, 2^202020253 is an apocalyptic number.

It is an amenable number.

202020253 is a deficient number, since it is larger than the sum of its proper divisors (1).

202020253 is an equidigital number, since it uses as much as digits as its factorization.

202020253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 202020253 is about 14213.3828837473. The cubic root of 202020253 is about 586.7660397194.

Adding to 202020253 its reverse (352020202), we get a palindrome (554040455).

The spelling of 202020253 in words is "two hundred two million, twenty thousand, two hundred fifty-three".