50399851 has 2 divisors, whose sum is σ = 50399852. Its totient is φ = 50399850.

The previous prime is 50399819. The next prime is 50399887. The reversal of 50399851 is 15899305.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50399851 - 2⁵ = 50399819 is a prime.

It is not a weakly prime, because it can be changed into another prime (50399051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25199925 + 25199926.

It is an arithmetic number, because the mean of its divisors is an integer number (25199926).

Almost surely, 2^50399851 is an apocalyptic number.

50399851 is a deficient number, since it is larger than the sum of its proper divisors (1).

50399851 is an equidigital number, since it uses as much as digits as its factorization.

50399851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 50399851 is about 7099.2852457131. The cubic root of 50399851 is about 369.3825860809.

The spelling of 50399851 in words is "fifty million, three hundred ninety-nine thousand, eight hundred fifty-one".