50121133504 has 56 divisors (see below), whose sum is σ = 107209943568. Its totient is φ = 23111208960.

The previous prime is 50121133501. The next prime is 50121133519. The reversal of 50121133504 is 40533112105.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50121133501) 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, 880104 + ... + 935320.

It is an arithmetic number, because the mean of its divisors is an integer number (1914463278).

Almost surely, 2^50121133504 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 50121133504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53604971784).

50121133504 is an abundant number, since it is smaller than the sum of its proper divisors (57088810064).

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

50121133504 is a wasteful number, since it uses less digits than its factorization.

50121133504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56333 (or 56323 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 50121133504 its reverse (40533112105), we get a palindrome (90654245609).

The spelling of 50121133504 in words is "fifty billion, one hundred twenty-one million, one hundred thirty-three thousand, five hundred four".