50809113 has 14 divisors (see below), whose sum is σ = 76179914. Its totient is φ = 33872256.

The previous prime is 50809111. The next prime is 50809117. The reversal of 50809113 is 31190805.

It can be written as a sum of positive squares in only one way, i.e., 50808384 + 729 = 7128^2 + 27^2 .

It is not a de Polignac number, because 50809113 - 2¹ = 50809111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50809111) 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 13 ways as a sum of consecutive naturals, for example, 34120 + ... + 35577.

Almost surely, 2^50809113 is an apocalyptic number.

It is an amenable number.

50809113 is a deficient number, since it is larger than the sum of its proper divisors (25370801).

50809113 is an frugal number, since it uses more digits than its factorization.

50809113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69715 (or 69700 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 50809113 is about 7128.0511361802. The cubic root of 50809113 is about 370.3797246007.

Adding to 50809113 its reverse (31190805), we get a palindrome (81999918).

The spelling of 50809113 in words is "fifty million, eight hundred nine thousand, one hundred thirteen".