20020243325 has 6 divisors (see below), whose sum is σ = 24825101754. Its totient is φ = 16016194640.

The previous prime is 20020243291. The next prime is 20020243337. The reversal of 20020243325 is 52334202002.

It can be written as a sum of positive squares in 3 ways, for example, as 2306496676 + 17713746649 = 48026^2 + 133093^2 .

It is not a de Polignac number, because 20020243325 - 2¹⁰ = 20020242301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20020243325.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 400404842 + ... + 400404891.

It is an arithmetic number, because the mean of its divisors is an integer number (4137516959).

Almost surely, 2^20020243325 is an apocalyptic number.

20020243325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20020243325 is a deficient number, since it is larger than the sum of its proper divisors (4804858429).

20020243325 is an equidigital number, since it uses as much as digits as its factorization.

20020243325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800809743 (or 800809738 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

Adding to 20020243325 its reverse (52334202002), we get a palindrome (72354445327).

The spelling of 20020243325 in words is "twenty billion, twenty million, two hundred forty-three thousand, three hundred twenty-five".