50766133217 has 4 divisors (see below), whose sum is σ = 50767502100. Its totient is φ = 50764764336.

The previous prime is 50766133189. The next prime is 50766133277. The reversal of 50766133217 is 71233166705.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71233166705 = 5 ⋅14246633341.

It can be written as a sum of positive squares in 2 ways, for example, as 46447146256 + 4318986961 = 215516^2 + 65719^2 .

It is a cyclic number.

It is not a de Polignac number, because 50766133217 - 2¹⁸ = 50765871073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50766133277) 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, 627218 + ... + 703515.

It is an arithmetic number, because the mean of its divisors is an integer number (12691875525).

Almost surely, 2^50766133217 is an apocalyptic number.

It is an amenable number.

50766133217 is a deficient number, since it is larger than the sum of its proper divisors (1368883).

50766133217 is a wasteful number, since it uses less digits than its factorization.

50766133217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368882.

The product of its (nonzero) digits is 158760, while the sum is 41.

The spelling of 50766133217 in words is "fifty billion, seven hundred sixty-six million, one hundred thirty-three thousand, two hundred seventeen".