50509687 has 2 divisors, whose sum is σ = 50509688. Its totient is φ = 50509686.

The previous prime is 50509639. The next prime is 50509691. The reversal of 50509687 is 78690505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50509687 - 2¹⁹ = 49985399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50509637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25254843 + 25254844.

It is an arithmetic number, because the mean of its divisors is an integer number (25254844).

Almost surely, 2^50509687 is an apocalyptic number.

50509687 is a deficient number, since it is larger than the sum of its proper divisors (1).

50509687 is an equidigital number, since it uses as much as digits as its factorization.

50509687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 50509687 is about 7107.0167440354. The cubic root of 50509687 is about 369.6507222504.

The spelling of 50509687 in words is "fifty million, five hundred nine thousand, six hundred eighty-seven".