50005323521 has 8 divisors (see below), whose sum is σ = 50174669160. Its totient is φ = 49836039552.

The previous prime is 50005323499. The next prime is 50005323539. The reversal of 50005323521 is 12532350005.

It can be written as a sum of positive squares in 4 ways, for example, as 838913296 + 49166410225 = 28964^2 + 221735^2 .

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 50005323521 - 2²⁶ = 49938214657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50005323551) 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, 2088011 + ... + 2111823.

It is an arithmetic number, because the mean of its divisors is an integer number (6271833645).

Almost surely, 2^50005323521 is an apocalyptic number.

It is an amenable number.

50005323521 is a deficient number, since it is larger than the sum of its proper divisors (169345639).

50005323521 is a wasteful number, since it uses less digits than its factorization.

50005323521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30835.

The product of its (nonzero) digits is 4500, while the sum is 26.

Adding to 50005323521 its reverse (12532350005), we get a palindrome (62537673526).

The spelling of 50005323521 in words is "fifty billion, five million, three hundred twenty-three thousand, five hundred twenty-one".