50000851 has 2 divisors, whose sum is σ = 50000852. Its totient is φ = 50000850.

The previous prime is 50000849. The next prime is 50000857. The reversal of 50000851 is 15800005.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50000851 - 2¹ = 50000849 is a prime.

Together with 50000849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (50000857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000425 + 25000426.

It is an arithmetic number, because the mean of its divisors is an integer number (25000426).

Almost surely, 2^50000851 is an apocalyptic number.

50000851 is a deficient number, since it is larger than the sum of its proper divisors (1).

50000851 is an equidigital number, since it uses as much as digits as its factorization.

50000851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 50000851 is about 7071.1279863965. The cubic root of 50000851 is about 368.4052399261.

Adding to 50000851 its reverse (15800005), we get a palindrome (65800856).

The spelling of 50000851 in words is "fifty million, eight hundred fifty-one", and thus it is an aban number.