50591 has 2 divisors, whose sum is σ = 50592. Its totient is φ = 50590.

The previous prime is 50587. The next prime is 50593. The reversal of 50591 is 19505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50591 - 2² = 50587 is a prime.

It is a Sophie Germain prime.

Together with 50593, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 50591.

It is not a weakly prime, because it can be changed into another prime (50593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25295 + 25296.

It is an arithmetic number, because the mean of its divisors is an integer number (25296).

2⁵⁰⁵⁹¹ is an apocalyptic number.

50591 is a deficient number, since it is larger than the sum of its proper divisors (1).

50591 is an equidigital number, since it uses as much as digits as its factorization.

50591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 50591 is about 224.9244317543. The cubic root of 50591 is about 36.9848976592.

The spelling of 50591 in words is "fifty thousand, five hundred ninety-one".