50405724217 has 16 divisors (see below), whose sum is σ = 53517784320. Its totient is φ = 47310202368.

The previous prime is 50405724163. The next prime is 50405724241. The reversal of 50405724217 is 71242750405.

50405724217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50405724217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50405724247) 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, 10589284 + ... + 10594042.

It is an arithmetic number, because the mean of its divisors is an integer number (3344861520).

Almost surely, 2^50405724217 is an apocalyptic number.

It is an amenable number.

50405724217 is a deficient number, since it is larger than the sum of its proper divisors (3112060103).

50405724217 is a wasteful number, since it uses less digits than its factorization.

50405724217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360.

The product of its (nonzero) digits is 78400, while the sum is 37.

The spelling of 50405724217 in words is "fifty billion, four hundred five million, seven hundred twenty-four thousand, two hundred seventeen".