50113122521 has 16 divisors (see below), whose sum is σ = 64002572928. Its totient is φ = 38096764800.

The previous prime is 50113122443. The next prime is 50113122533. The reversal of 50113122521 is 12522131105.

It is a cyclic number.

It is not a de Polignac number, because 50113122521 - 2¹⁸ = 50112860377 is a prime.

It is a super-2 number, since 2×50113122521² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50113112521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7933670 + ... + 7939983.

It is an arithmetic number, because the mean of its divisors is an integer number (4000160808).

Almost surely, 2^50113122521 is an apocalyptic number.

It is an amenable number.

50113122521 is a deficient number, since it is larger than the sum of its proper divisors (13889450407).

50113122521 is a wasteful number, since it uses less digits than its factorization.

50113122521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15873712.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 50113122521 its reverse (12522131105), we get a palindrome (62635253626).

The spelling of 50113122521 in words is "fifty billion, one hundred thirteen million, one hundred twenty-two thousand, five hundred twenty-one".