50771809 has 12 divisors (see below), whose sum is σ = 58840848. Its totient is φ = 43438400.

The previous prime is 50771803. The next prime is 50771849. The reversal of 50771809 is 90817705.

50771809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-50771809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50771803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4807 + ... + 11164.

It is an arithmetic number, because the mean of its divisors is an integer number (4903404).

Almost surely, 2^50771809 is an apocalyptic number.

It is an amenable number.

50771809 is a deficient number, since it is larger than the sum of its proper divisors (8069039).

50771809 is a wasteful number, since it uses less digits than its factorization.

50771809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16016 (or 15999 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 50771809 is about 7125.4339516973. The cubic root of 50771809 is about 370.2890582667.

It can be divided in two parts, 5077 and 1809, that added together give a palindrome (6886).

The spelling of 50771809 in words is "fifty million, seven hundred seventy-one thousand, eight hundred nine".