50507213 has 4 divisors (see below), whose sum is σ = 51261120. Its totient is φ = 49753308.

The previous prime is 50507209. The next prime is 50507231. The reversal of 50507213 is 31270505.

50507213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 50507213 - 2² = 50507209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50507113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376853 + ... + 376986.

It is an arithmetic number, because the mean of its divisors is an integer number (12815280).

Almost surely, 2^50507213 is an apocalyptic number.

It is an amenable number.

50507213 is a deficient number, since it is larger than the sum of its proper divisors (753907).

50507213 is an equidigital number, since it uses as much as digits as its factorization.

50507213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753906.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 50507213 is about 7106.8426885643. The cubic root of 50507213 is about 369.6446869010.

Adding to 50507213 its reverse (31270505), we get a palindrome (81777718).

The spelling of 50507213 in words is "fifty million, five hundred seven thousand, two hundred thirteen".