50205225281 has 2 divisors, whose sum is σ = 50205225282. Its totient is φ = 50205225280.

The previous prime is 50205225241. The next prime is 50205225289. The reversal of 50205225281 is 18252250205.

50205225281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36755024656 + 13450200625 = 191716^2 + 115975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50205225281 is a prime.

It is a super-2 number, since 2×50205225281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50205225289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25102612640 + 25102612641.

It is an arithmetic number, because the mean of its divisors is an integer number (25102612641).

Almost surely, 2^50205225281 is an apocalyptic number.

It is an amenable number.

50205225281 is a deficient number, since it is larger than the sum of its proper divisors (1).

50205225281 is an equidigital number, since it uses as much as digits as its factorization.

50205225281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 50205225281 its reverse (18252250205), we get a palindrome (68457475486).

The spelling of 50205225281 in words is "fifty billion, two hundred five million, two hundred twenty-five thousand, two hundred eighty-one".