50387213 has 2 divisors, whose sum is σ = 50387214. Its totient is φ = 50387212.

The previous prime is 50387203. The next prime is 50387231. The reversal of 50387213 is 31278305.

Together with next prime (50387231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49589764 + 797449 = 7042^2 + 893^2 .

It is a cyclic number.

It is not a de Polignac number, because 50387213 - 2⁸ = 50386957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50387203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25193606 + 25193607.

It is an arithmetic number, because the mean of its divisors is an integer number (25193607).

Almost surely, 2^50387213 is an apocalyptic number.

It is an amenable number.

50387213 is a deficient number, since it is larger than the sum of its proper divisors (1).

50387213 is an equidigital number, since it uses as much as digits as its factorization.

50387213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 50387213 is about 7098.3951003026. The cubic root of 50387213 is about 369.3517086922.

The spelling of 50387213 in words is "fifty million, three hundred eighty-seven thousand, two hundred thirteen".