50650909 has 2 divisors, whose sum is σ = 50650910. Its totient is φ = 50650908.

The previous prime is 50650889. The next prime is 50650961. The reversal of 50650909 is 90905605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 10582009 = 6330^2 + 3253^2 .

It is a cyclic number.

It is not a de Polignac number, because 50650909 - 2⁵ = 50650877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50650109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25325454 + 25325455.

It is an arithmetic number, because the mean of its divisors is an integer number (25325455).

Almost surely, 2^50650909 is an apocalyptic number.

It is an amenable number.

50650909 is a deficient number, since it is larger than the sum of its proper divisors (1).

50650909 is an equidigital number, since it uses as much as digits as its factorization.

50650909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 50650909 is about 7116.9452014189. The cubic root of 50650909 is about 369.9949086224.

It can be divided in two parts, 506 and 50909, that added together give a palindrome (51415).

The spelling of 50650909 in words is "fifty million, six hundred fifty thousand, nine hundred nine".