50005731521521 has 8 divisors (see below), whose sum is σ = 53184676737024. Its totient is φ = 46853167594560.

The previous prime is 50005731521461. The next prime is 50005731521533. The reversal of 50005731521521 is 12512513750005.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50005731521521 - 2¹⁷ = 50005731390449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50005731521021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6595318225 + ... + 6595325806.

It is an arithmetic number, because the mean of its divisors is an integer number (6648084592128).

Almost surely, 2^{50005731521521} is an apocalyptic number.

It is an amenable number.

50005731521521 is a deficient number, since it is larger than the sum of its proper divisors (3178945215503).

50005731521521 is a wasteful number, since it uses less digits than its factorization.

50005731521521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13190644271.

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 50005731521521 in words is "fifty trillion, five billion, seven hundred thirty-one million, five hundred twenty-one thousand, five hundred twenty-one".