50163121 has 2 divisors, whose sum is σ = 50163122. Its totient is φ = 50163120.

The previous prime is 50163119. The next prime is 50163151. The reversal of 50163121 is 12136105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28772496 + 21390625 = 5364^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 50163121 - 2¹ = 50163119 is a prime.

Together with 50163119, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50163151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25081560 + 25081561.

It is an arithmetic number, because the mean of its divisors is an integer number (25081561).

Almost surely, 2^50163121 is an apocalyptic number.

It is an amenable number.

50163121 is a deficient number, since it is larger than the sum of its proper divisors (1).

50163121 is an equidigital number, since it uses as much as digits as its factorization.

50163121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 50163121 is about 7082.5928161938. The cubic root of 50163121 is about 368.8033435804.

Adding to 50163121 its reverse (12136105), we get a palindrome (62299226).

The spelling of 50163121 in words is "fifty million, one hundred sixty-three thousand, one hundred twenty-one".