50647691 has 2 divisors, whose sum is σ = 50647692. Its totient is φ = 50647690.

The previous prime is 50647657. The next prime is 50647693. The reversal of 50647691 is 19674605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50647691 - 2¹⁸ = 50385547 is a prime.

Together with 50647693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50647693) 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, 25323845 + 25323846.

It is an arithmetic number, because the mean of its divisors is an integer number (25323846).

Almost surely, 2^50647691 is an apocalyptic number.

50647691 is a deficient number, since it is larger than the sum of its proper divisors (1).

50647691 is an equidigital number, since it uses as much as digits as its factorization.

50647691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 50647691 is about 7116.7191176834. The cubic root of 50647691 is about 369.9870728379.

The spelling of 50647691 in words is "fifty million, six hundred forty-seven thousand, six hundred ninety-one".