50512223021 has 8 divisors (see below), whose sum is σ = 54403769784. Its totient is φ = 46621532160.

The previous prime is 50512222993. The next prime is 50512223039. The reversal of 50512223021 is 12032221505.

It can be written as a sum of positive squares in 4 ways, for example, as 17579047396 + 32933175625 = 132586^2 + 181475^2 .

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 50512223021 - 2¹⁴ = 50512206637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50512223051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88676 + ... + 329981.

It is an arithmetic number, because the mean of its divisors is an integer number (6800471223).

Almost surely, 2^50512223021 is an apocalyptic number.

It is an amenable number.

50512223021 is a deficient number, since it is larger than the sum of its proper divisors (3891546763).

50512223021 is a wasteful number, since it uses less digits than its factorization.

50512223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427951.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 50512223021 its reverse (12032221505), we get a palindrome (62544444526).

The spelling of 50512223021 in words is "fifty billion, five hundred twelve million, two hundred twenty-three thousand, twenty-one".