50056110505991 has 4 divisors (see below), whose sum is σ = 50057606672112. Its totient is φ = 50054614339872.

The previous prime is 50056110505957. The next prime is 50056110506023. The reversal of 50056110505991 is 19950501165005.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50056110505991 - 2¹⁴ = 50056110489607 is a prime.

It is a super-2 number, since 2×50056110505991² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50056110505901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748032875 + ... + 748099788.

It is an arithmetic number, because the mean of its divisors is an integer number (12514401668028).

Almost surely, 2^{50056110505991} is an apocalyptic number.

50056110505991 is a deficient number, since it is larger than the sum of its proper divisors (1496166121).

50056110505991 is a wasteful number, since it uses less digits than its factorization.

50056110505991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496166120.

The product of its (nonzero) digits is 303750, while the sum is 47.

The spelling of 50056110505991 in words is "fifty trillion, fifty-six billion, one hundred ten million, five hundred five thousand, nine hundred ninety-one".