50651200221 has 64 divisors (see below), whose sum is σ = 71066419200. Its totient is φ = 32068656576.

The previous prime is 50651200213. The next prime is 50651200241. The reversal of 50651200221 is 12200215605.

It is a happy number.

It is not a de Polignac number, because 50651200221 - 2³ = 50651200213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 50651200191 and 50651200200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50651200241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227135316 + ... + 227135538.

It is an arithmetic number, because the mean of its divisors is an integer number (1110412800).

Almost surely, 2^50651200221 is an apocalyptic number.

It is an amenable number.

50651200221 is a deficient number, since it is larger than the sum of its proper divisors (20415218979).

50651200221 is a wasteful number, since it uses less digits than its factorization.

50651200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 50651200221 its reverse (12200215605), we get a palindrome (62851415826).

The spelling of 50651200221 in words is "fifty billion, six hundred fifty-one million, two hundred thousand, two hundred twenty-one".