50697009 has 40 divisors (see below), whose sum is σ = 87503328. Its totient is φ = 28909440.

The previous prime is 50697007. The next prime is 50697071. The reversal of 50697009 is 90079605.

It is not a de Polignac number, because 50697009 - 2¹ = 50697007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50697007) 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 in 39 ways as a sum of consecutive naturals, for example, 13474 + ... + 16820.

Almost surely, 2^50697009 is an apocalyptic number.

It is an amenable number.

50697009 is a deficient number, since it is larger than the sum of its proper divisors (36806319).

50697009 is a wasteful number, since it uses less digits than its factorization.

50697009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387 (or 3378 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 50697009 is about 7120.1832139349. The cubic root of 50697009 is about 370.1071250564.

The spelling of 50697009 in words is "fifty million, six hundred ninety-seven thousand, nine".