50683991 has 2 divisors, whose sum is σ = 50683992. Its totient is φ = 50683990.

The previous prime is 50683961. The next prime is 50683993. The reversal of 50683991 is 19938605.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50683991 is a prime.

Together with 50683993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50683993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25341995 + 25341996.

It is an arithmetic number, because the mean of its divisors is an integer number (25341996).

Almost surely, 2^50683991 is an apocalyptic number.

50683991 is a deficient number, since it is larger than the sum of its proper divisors (1).

50683991 is an equidigital number, since it uses as much as digits as its factorization.

50683991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 50683991 is about 7119.2689933728. The cubic root of 50683991 is about 370.0754435884.

The spelling of 50683991 in words is "fifty million, six hundred eighty-three thousand, nine hundred ninety-one".