50521322431 has 8 divisors (see below), whose sum is σ = 50568645600. Its totient is φ = 50474024160.

The previous prime is 50521322407. The next prime is 50521322441. The reversal of 50521322431 is 13422312505.

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 50521322431 - 2⁷ = 50521322303 is a prime.

It is a super-2 number, since 2×50521322431² (a number of 22 digits) contains 22 as substring.

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 50521322431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50521322441) 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, 8797221 + ... + 8802961.

It is an arithmetic number, because the mean of its divisors is an integer number (6321080700).

Almost surely, 2^50521322431 is an apocalyptic number.

50521322431 is a deficient number, since it is larger than the sum of its proper divisors (47323169).

50521322431 is a wasteful number, since it uses less digits than its factorization.

50521322431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12449.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 50521322431 its reverse (13422312505), we get a palindrome (63943634936).

The spelling of 50521322431 in words is "fifty billion, five hundred twenty-one million, three hundred twenty-two thousand, four hundred thirty-one".