50509643 has 4 divisors (see below), whose sum is σ = 50524560. Its totient is φ = 50494728.

The previous prime is 50509639. The next prime is 50509687. The reversal of 50509643 is 34690505.

It is a happy number.

50509643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34690505 = 5 ⋅6938101.

It is a cyclic number.

It is not a de Polignac number, because 50509643 - 2² = 50509639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50509603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338 + ... + 10056.

It is an arithmetic number, because the mean of its divisors is an integer number (12631140).

Almost surely, 2^50509643 is an apocalyptic number.

50509643 is a deficient number, since it is larger than the sum of its proper divisors (14917).

50509643 is an equidigital number, since it uses as much as digits as its factorization.

50509643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14916.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 50509643 is about 7107.0136485024. The cubic root of 50509643 is about 369.6506149136.

The spelling of 50509643 in words is "fifty million, five hundred nine thousand, six hundred forty-three".