50639911 has 8 divisors (see below), whose sum is σ = 58222080. Its totient is φ = 43144728.

The previous prime is 50639909. The next prime is 50639929. The reversal of 50639911 is 11993605.

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

It is a cyclic number.

It is not a de Polignac number, because 50639911 - 2¹ = 50639909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50639971) 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, 20491 + ... + 22828.

It is an arithmetic number, because the mean of its divisors is an integer number (7277760).

Almost surely, 2^50639911 is an apocalyptic number.

50639911 is a deficient number, since it is larger than the sum of its proper divisors (7582169).

50639911 is a wasteful number, since it uses less digits than its factorization.

50639911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43493.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 50639911 is about 7116.1724965040. The cubic root of 50639911 is about 369.9681272764.

The spelling of 50639911 in words is "fifty million, six hundred thirty-nine thousand, nine hundred eleven".