50303213 has 4 divisors (see below), whose sum is σ = 50345568. Its totient is φ = 50260860.

The previous prime is 50303191. The next prime is 50303219. The reversal of 50303213 is 31230305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31230305 = 5 ⋅6246061.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50303213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50303191 and 50303200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50303219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19343 + ... + 21788.

It is an arithmetic number, because the mean of its divisors is an integer number (12586392).

Almost surely, 2^50303213 is an apocalyptic number.

It is an amenable number.

50303213 is a deficient number, since it is larger than the sum of its proper divisors (42355).

50303213 is a wasteful number, since it uses less digits than its factorization.

50303213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42354.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 50303213 is about 7092.4758018621. The cubic root of 50303213 is about 369.1463470640.

Adding to 50303213 its reverse (31230305), we get a palindrome (81533518).

The spelling of 50303213 in words is "fifty million, three hundred three thousand, two hundred thirteen".