50643659 has 8 divisors (see below), whose sum is σ = 55359552. Its totient is φ = 45946440.

The previous prime is 50643613. The next prime is 50643727. The reversal of 50643659 is 95634605.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50643659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50643259) 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 in 7 ways as a sum of consecutive naturals, for example, 1352 + ... + 10154.

It is an arithmetic number, because the mean of its divisors is an integer number (6919944).

Almost surely, 2^50643659 is an apocalyptic number.

50643659 is a deficient number, since it is larger than the sum of its proper divisors (4715893).

50643659 is a wasteful number, since it uses less digits than its factorization.

50643659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9337.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 50643659 is about 7116.4358354446. The cubic root of 50643659 is about 369.9772545063.

The spelling of 50643659 in words is "fifty million, six hundred forty-three thousand, six hundred fifty-nine".