50423213 has 2 divisors, whose sum is σ = 50423214. Its totient is φ = 50423212.

The previous prime is 50423209. The next prime is 50423227. The reversal of 50423213 is 31232405.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49378729 + 1044484 = 7027^2 + 1022^2 .

It is a cyclic number.

It is not a de Polignac number, because 50423213 - 2² = 50423209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50423273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25211606 + 25211607.

It is an arithmetic number, because the mean of its divisors is an integer number (25211607).

Almost surely, 2^50423213 is an apocalyptic number.

It is an amenable number.

50423213 is a deficient number, since it is larger than the sum of its proper divisors (1).

50423213 is an equidigital number, since it uses as much as digits as its factorization.

50423213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 50423213 is about 7100.9304319927. The cubic root of 50423213 is about 369.4396509517.

Adding to 50423213 its reverse (31232405), we get a palindrome (81655618).

The spelling of 50423213 in words is "fifty million, four hundred twenty-three thousand, two hundred thirteen".