50289913 has 4 divisors (see below), whose sum is σ = 50304100. Its totient is φ = 50275728.

The previous prime is 50289881. The next prime is 50289917. The reversal of 50289913 is 31998205.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 39087504 + 11202409 = 6252^2 + 3347^2 .

It is a cyclic number.

It is not a de Polignac number, because 50289913 - 2⁵ = 50289881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50289917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3331 + ... + 10567.

It is an arithmetic number, because the mean of its divisors is an integer number (12576025).

Almost surely, 2^50289913 is an apocalyptic number.

It is an amenable number.

50289913 is a deficient number, since it is larger than the sum of its proper divisors (14187).

50289913 is an equidigital number, since it uses as much as digits as its factorization.

50289913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14186.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 50289913 is about 7091.5381265280. The cubic root of 50289913 is about 369.1138105129.

It can be divided in two parts, 5028 and 9913, that added together give a palindrome (14941).

The spelling of 50289913 in words is "fifty million, two hundred eighty-nine thousand, nine hundred thirteen".