50993389 has 2 divisors, whose sum is σ = 50993390. Its totient is φ = 50993388.

The previous prime is 50993329. The next prime is 50993413. The reversal of 50993389 is 98339905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39904489 + 11088900 = 6317^2 + 3330^2 .

It is a cyclic number.

It is not a de Polignac number, because 50993389 - 2¹³ = 50985197 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 (50993329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25496694 + 25496695.

It is an arithmetic number, because the mean of its divisors is an integer number (25496695).

Almost surely, 2^50993389 is an apocalyptic number.

It is an amenable number.

50993389 is a deficient number, since it is larger than the sum of its proper divisors (1).

50993389 is an equidigital number, since it uses as much as digits as its factorization.

50993389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 50993389 is about 7140.9655509602. The cubic root of 50993389 is about 370.8269524243.

The spelling of 50993389 in words is "fifty million, nine hundred ninety-three thousand, three hundred eighty-nine".