50188638 has 8 divisors (see below), whose sum is σ = 100377288. Its totient is φ = 16729544.

The previous prime is 50188601. The next prime is 50188651. The reversal of 50188638 is 83688105.

It is a happy number.

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

50188638 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 50188596 and 50188605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4182381 + ... + 4182392.

It is an arithmetic number, because the mean of its divisors is an integer number (12547161).

Almost surely, 2^50188638 is an apocalyptic number.

50188638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50188638 is a wasteful number, since it uses less digits than its factorization.

50188638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8364778.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 50188638 is about 7084.3939754929. The cubic root of 50188638 is about 368.8658673329.

The spelling of 50188638 in words is "fifty million, one hundred eighty-eight thousand, six hundred thirty-eight".