50399659 has 2 divisors, whose sum is σ = 50399660. Its totient is φ = 50399658.

The previous prime is 50399641. The next prime is 50399681. The reversal of 50399659 is 95699305.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50399659 - 2⁵ = 50399627 is a prime.

It is not a weakly prime, because it can be changed into another prime (50399639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25199829 + 25199830.

It is an arithmetic number, because the mean of its divisors is an integer number (25199830).

Almost surely, 2^50399659 is an apocalyptic number.

50399659 is a deficient number, since it is larger than the sum of its proper divisors (1).

50399659 is an equidigital number, since it uses as much as digits as its factorization.

50399659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 328050, while the sum is 46.

The square root of 50399659 is about 7099.2717232122. The cubic root of 50399659 is about 369.3821170216.

The spelling of 50399659 in words is "fifty million, three hundred ninety-nine thousand, six hundred fifty-nine".