50534201521 has 8 divisors (see below), whose sum is σ = 50590845000. Its totient is φ = 50477586432.

The previous prime is 50534201477. The next prime is 50534201537. The reversal of 50534201521 is 12510243505.

It can be written as a sum of positive squares in 4 ways, for example, as 8075538496 + 42458663025 = 89864^2 + 206055^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50534201521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50534201521.

It is not an unprimeable number, because it can be changed into a prime (50534201321) 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, 6582141 + ... + 6589813.

It is an arithmetic number, because the mean of its divisors is an integer number (6323855625).

Almost surely, 2^50534201521 is an apocalyptic number.

It is an amenable number.

50534201521 is a deficient number, since it is larger than the sum of its proper divisors (56643479).

50534201521 is a wasteful number, since it uses less digits than its factorization.

50534201521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195.

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 50534201521 in words is "fifty billion, five hundred thirty-four million, two hundred one thousand, five hundred twenty-one".