51550352222 has 16 divisors (see below), whose sum is σ = 77626229472. Its totient is φ = 25675134720.

The previous prime is 51550352221. The next prime is 51550352233. The reversal of 51550352222 is 22225305515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51550352221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494447 + ... + 589557.

It is an arithmetic number, because the mean of its divisors is an integer number (4851639342).

Almost surely, 2^51550352222 is an apocalyptic number.

51550352222 is a deficient number, since it is larger than the sum of its proper divisors (26075877250).

51550352222 is a wasteful number, since it uses less digits than its factorization.

51550352222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96163.

The product of its (nonzero) digits is 30000, while the sum is 32.

Adding to 51550352222 its reverse (22225305515), we get a palindrome (73775657737).

The spelling of 51550352222 in words is "fifty-one billion, five hundred fifty million, three hundred fifty-two thousand, two hundred twenty-two".