50520771518181 has 32 divisors (see below), whose sum is σ = 69424668979200. Its totient is φ = 32666596522560.

The previous prime is 50520771518137. The next prime is 50520771518207. The reversal of 50520771518181 is 18181517702505.

It is a de Polignac number, because none of the positive numbers 2^k-50520771518181 is a prime.

It is a super-2 number, since 2×50520771518181² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50520771514181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1269351 + ... + 10131771.

It is an arithmetic number, because the mean of its divisors is an integer number (2169520905600).

Almost surely, 2^{50520771518181} is an apocalyptic number.

It is an amenable number.

50520771518181 is a deficient number, since it is larger than the sum of its proper divisors (18903897461019).

50520771518181 is a wasteful number, since it uses less digits than its factorization.

50520771518181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8862929.

The product of its (nonzero) digits is 784000, while the sum is 51.

The spelling of 50520771518181 in words is "fifty trillion, five hundred twenty billion, seven hundred seventy-one million, five hundred eighteen thousand, one hundred eighty-one".