20050243 has 2 divisors, whose sum is σ = 20050244. Its totient is φ = 20050242.

The previous prime is 20050241. The next prime is 20050291. The reversal of 20050243 is 34205002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20050243 - 2¹ = 20050241 is a prime.

Together with 20050241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20050241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025121 + 10025122.

It is an arithmetic number, because the mean of its divisors is an integer number (10025122).

Almost surely, 2^20050243 is an apocalyptic number.

20050243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20050243 is an equidigital number, since it uses as much as digits as its factorization.

20050243 is an evil number, because the sum of its binary digits is even.

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

The square root of 20050243 is about 4477.7497696946. The cubic root of 20050243 is about 271.6688723940.

Adding to 20050243 its reverse (34205002), we get a palindrome (54255245).

The spelling of 20050243 in words is "twenty million, fifty thousand, two hundred forty-three".