50688009 has 6 divisors (see below), whose sum is σ = 73216026. Its totient is φ = 33792000.

The previous prime is 50687993. The next prime is 50688019. The reversal of 50688009 is 90088605.

It can be written as a sum of positive squares in only one way, i.e., 49070025 + 1617984 = 7005^2 + 1272^2 .

It is not a de Polignac number, because 50688009 - 2⁴ = 50687993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50688019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2815992 + ... + 2816009.

It is an arithmetic number, because the mean of its divisors is an integer number (12202671).

Almost surely, 2^50688009 is an apocalyptic number.

It is an amenable number.

50688009 is a deficient number, since it is larger than the sum of its proper divisors (22528017).

50688009 is a wasteful number, since it uses less digits than its factorization.

50688009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632007 (or 5632004 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 50688009 is about 7119.5511796742. The cubic root of 50688009 is about 370.0852226383.

The spelling of 50688009 in words is "fifty million, six hundred eighty-eight thousand, nine".