50906689 has 2 divisors, whose sum is σ = 50906690. Its totient is φ = 50906688.

The previous prime is 50906651. The next prime is 50906701. The reversal of 50906689 is 98660905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47720464 + 3186225 = 6908^2 + 1785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50906689 is a prime.

It is not a weakly prime, because it can be changed into another prime (50906489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25453344 + 25453345.

It is an arithmetic number, because the mean of its divisors is an integer number (25453345).

Almost surely, 2^50906689 is an apocalyptic number.

It is an amenable number.

50906689 is a deficient number, since it is larger than the sum of its proper divisors (1).

50906689 is an equidigital number, since it uses as much as digits as its factorization.

50906689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 50906689 is about 7134.8923607858. The cubic root of 50906689 is about 370.6166706882.

The spelling of 50906689 in words is "fifty million, nine hundred six thousand, six hundred eighty-nine".