50043281 has 2 divisors, whose sum is σ = 50043282. Its totient is φ = 50043280.

The previous prime is 50043263. The next prime is 50043311. The reversal of 50043281 is 18234005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49224256 + 819025 = 7016^2 + 905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50043281 is a prime.

It is a super-2 number, since 2×50043281² = 5008659946489922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (50043221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25021640 + 25021641.

It is an arithmetic number, because the mean of its divisors is an integer number (25021641).

Almost surely, 2^50043281 is an apocalyptic number.

It is an amenable number.

50043281 is a deficient number, since it is larger than the sum of its proper divisors (1).

50043281 is an equidigital number, since it uses as much as digits as its factorization.

50043281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 50043281 is about 7074.1275787195. The cubic root of 50043281 is about 368.5094182521.

Adding to 50043281 its reverse (18234005), we get a palindrome (68277286).

The spelling of 50043281 in words is "fifty million, forty-three thousand, two hundred eighty-one".