50559121 has 2 divisors, whose sum is σ = 50559122. Its totient is φ = 50559120.

The previous prime is 50559097. The next prime is 50559161. The reversal of 50559121 is 12195505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29582721 + 20976400 = 5439^2 + 4580^2 .

It is a cyclic number.

It is not a de Polignac number, because 50559121 - 2⁷ = 50558993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50559121.

It is not a weakly prime, because it can be changed into another prime (50559161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25279560 + 25279561.

It is an arithmetic number, because the mean of its divisors is an integer number (25279561).

Almost surely, 2^50559121 is an apocalyptic number.

It is an amenable number.

50559121 is a deficient number, since it is larger than the sum of its proper divisors (1).

50559121 is an equidigital number, since it uses as much as digits as its factorization.

50559121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 50559121 is about 7110.4937240673. The cubic root of 50559121 is about 369.7712757306.

The spelling of 50559121 in words is "fifty million, five hundred fifty-nine thousand, one hundred twenty-one".