50809867 has 4 divisors (see below), whose sum is σ = 51890976. Its totient is φ = 49728760.

The previous prime is 50809859. The next prime is 50809873. The reversal of 50809867 is 76890805.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50809867 - 2³ = 50809859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50809807) 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 3 ways as a sum of consecutive naturals, for example, 540484 + ... + 540577.

It is an arithmetic number, because the mean of its divisors is an integer number (12972744).

Almost surely, 2^50809867 is an apocalyptic number.

50809867 is a deficient number, since it is larger than the sum of its proper divisors (1081109).

50809867 is a wasteful number, since it uses less digits than its factorization.

50809867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081108.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 50809867 is about 7128.1040256158. The cubic root of 50809867 is about 370.3815567190.

The spelling of 50809867 in words is "fifty million, eight hundred nine thousand, eight hundred sixty-seven".