50509393 has 12 divisors (see below), whose sum is σ = 56081844. Its totient is φ = 45452000.

The previous prime is 50509379. The next prime is 50509409. The reversal of 50509393 is 39390505.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43996689 + 6512704 = 6633^2 + 2552^2 .

It is not a de Polignac number, because 50509393 - 2⁹ = 50508881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50509313) 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 11 ways as a sum of consecutive naturals, for example, 10155 + ... + 14287.

It is an arithmetic number, because the mean of its divisors is an integer number (4673487).

Almost surely, 2^50509393 is an apocalyptic number.

It is an amenable number.

50509393 is a deficient number, since it is larger than the sum of its proper divisors (5572451).

50509393 is a wasteful number, since it uses less digits than its factorization.

50509393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4256 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 18225, while the sum is 34.

The square root of 50509393 is about 7106.9960602212. The cubic root of 50509393 is about 369.6500050445.

Adding to 50509393 its reverse (39390505), we get a palindrome (89899898).

The spelling of 50509393 in words is "fifty million, five hundred nine thousand, three hundred ninety-three".