50665313 has 4 divisors (see below), whose sum is σ = 50988180. Its totient is φ = 50342448.

The previous prime is 50665301. The next prime is 50665367. The reversal of 50665313 is 31356605.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28121809 + 22543504 = 5303^2 + 4748^2 .

It is a cyclic number.

It is not a de Polignac number, because 50665313 - 2¹² = 50661217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50665393) 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, 161198 + ... + 161511.

It is an arithmetic number, because the mean of its divisors is an integer number (12747045).

Almost surely, 2^50665313 is an apocalyptic number.

It is an amenable number.

50665313 is a deficient number, since it is larger than the sum of its proper divisors (322867).

50665313 is a wasteful number, since it uses less digits than its factorization.

50665313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322866.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 50665313 is about 7117.9570805112. The cubic root of 50665313 is about 370.0299780921.

The spelling of 50665313 in words is "fifty million, six hundred sixty-five thousand, three hundred thirteen".