50203691 has 2 divisors, whose sum is σ = 50203692. Its totient is φ = 50203690.

The previous prime is 50203679. The next prime is 50203693. The reversal of 50203691 is 19630205.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50203691 - 2⁶ = 50203627 is a prime.

It is a Sophie Germain prime.

Together with 50203693, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50203691.

It is not a weakly prime, because it can be changed into another prime (50203693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25101845 + 25101846.

It is an arithmetic number, because the mean of its divisors is an integer number (25101846).

Almost surely, 2^50203691 is an apocalyptic number.

50203691 is a deficient number, since it is larger than the sum of its proper divisors (1).

50203691 is an equidigital number, since it uses as much as digits as its factorization.

50203691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 50203691 is about 7085.4563014671. The cubic root of 50203691 is about 368.9027414349.

Adding to 50203691 its reverse (19630205), we get a palindrome (69833896).

The spelling of 50203691 in words is "fifty million, two hundred three thousand, six hundred ninety-one".