42202020253 has 2 divisors, whose sum is σ = 42202020254. Its totient is φ = 42202020252.

The previous prime is 42202020239. The next prime is 42202020293. The reversal of 42202020253 is 35202020224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39787084089 + 2414936164 = 199467^2 + 49142^2 .

It is a cyclic number.

It is not a de Polignac number, because 42202020253 - 2²⁹ = 41665149341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42202020293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21101010126 + 21101010127.

It is an arithmetic number, because the mean of its divisors is an integer number (21101010127).

Almost surely, 2^42202020253 is an apocalyptic number.

It is an amenable number.

42202020253 is a deficient number, since it is larger than the sum of its proper divisors (1).

42202020253 is an equidigital number, since it uses as much as digits as its factorization.

42202020253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 42202020253 its reverse (35202020224), we get a palindrome (77404040477).

The spelling of 42202020253 in words is "forty-two billion, two hundred two million, twenty thousand, two hundred fifty-three".