50221130320 has 20 divisors (see below), whose sum is σ = 116764128180. Its totient is φ = 20088452096.

The previous prime is 50221130299. The next prime is 50221130321. The reversal of 50221130320 is 2303112205.

It can be written as a sum of positive squares in 2 ways, for example, as 14625516096 + 35595614224 = 120936^2 + 188668^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50221130321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313881985 + ... + 313882144.

It is an arithmetic number, because the mean of its divisors is an integer number (5838206409).

Almost surely, 2^50221130320 is an apocalyptic number.

It is an amenable number.

50221130320 is an abundant number, since it is smaller than the sum of its proper divisors (66542997860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50221130320 is a wasteful number, since it uses less digits than its factorization.

50221130320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627764142 (or 627764136 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 50221130320 its reverse (2303112205), we get a palindrome (52524242525).

The spelling of 50221130320 in words is "fifty billion, two hundred twenty-one million, one hundred thirty thousand, three hundred twenty".