50640791 has 2 divisors, whose sum is σ = 50640792. Its totient is φ = 50640790.

The previous prime is 50640767. The next prime is 50640829. The reversal of 50640791 is 19704605.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50640791 - 2⁶ = 50640727 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 (50640721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25320395 + 25320396.

It is an arithmetic number, because the mean of its divisors is an integer number (25320396).

Almost surely, 2^50640791 is an apocalyptic number.

50640791 is a deficient number, since it is larger than the sum of its proper divisors (1).

50640791 is an equidigital number, since it uses as much as digits as its factorization.

50640791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 50640791 is about 7116.2343272267. The cubic root of 50640791 is about 369.9702703164.

The spelling of 50640791 in words is "fifty million, six hundred forty thousand, seven hundred ninety-one".