50512812321 has 16 divisors (see below), whose sum is σ = 68255066880. Its totient is φ = 33224526720.

The previous prime is 50512812319. The next prime is 50512812401. The reversal of 50512812321 is 12321821505.

It is not a de Polignac number, because 50512812321 - 2¹ = 50512812319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50512814321) 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, 82105 + ... + 328278.

It is an arithmetic number, because the mean of its divisors is an integer number (4265941680).

Almost surely, 2^50512812321 is an apocalyptic number.

It is an amenable number.

50512812321 is a deficient number, since it is larger than the sum of its proper divisors (17742254559).

50512812321 is a wasteful number, since it uses less digits than its factorization.

50512812321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410936.

The product of its (nonzero) digits is 4800, while the sum is 30.

The spelling of 50512812321 in words is "fifty billion, five hundred twelve million, eight hundred twelve thousand, three hundred twenty-one".