50138968 has 32 divisors (see below), whose sum is σ = 103320000. Its totient is φ = 22620960.

The previous prime is 50138927. The next prime is 50138969. The reversal of 50138968 is 86983105.

It is a happy number.

It is a super-2 number, since 2×50138968² = 5027832224210048, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50138968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50138969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10183 + ... + 14281.

It is an arithmetic number, because the mean of its divisors is an integer number (3228750).

Almost surely, 2^50138968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50138968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51660000).

50138968 is an abundant number, since it is smaller than the sum of its proper divisors (53181032).

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

50138968 is a wasteful number, since it uses less digits than its factorization.

50138968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255 (or 4251 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 50138968 is about 7080.8875149941. The cubic root of 50138968 is about 368.7441424714.

It can be divided in two parts, 50138 and 968, that multiplied together give a palindrome (48533584).

The spelling of 50138968 in words is "fifty million, one hundred thirty-eight thousand, nine hundred sixty-eight".