50398121 has 2 divisors, whose sum is σ = 50398122. Its totient is φ = 50398120.

The previous prime is 50398111. The next prime is 50398151. The reversal of 50398121 is 12189305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46730896 + 3667225 = 6836^2 + 1915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50398121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50398111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25199060 + 25199061.

It is an arithmetic number, because the mean of its divisors is an integer number (25199061).

Almost surely, 2^50398121 is an apocalyptic number.

It is an amenable number.

50398121 is a deficient number, since it is larger than the sum of its proper divisors (1).

50398121 is an equidigital number, since it uses as much as digits as its factorization.

50398121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 50398121 is about 7099.1634014157. The cubic root of 50398121 is about 369.3783596187.

The spelling of 50398121 in words is "fifty million, three hundred ninety-eight thousand, one hundred twenty-one".