51885220022 has 16 divisors (see below), whose sum is σ = 85247523360. Its totient is φ = 23574622848.

The previous prime is 51885220019. The next prime is 51885220043. The reversal of 51885220022 is 22002258815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26309978 + ... + 26311949.

It is an arithmetic number, because the mean of its divisors is an integer number (5327970210).

Almost surely, 2^51885220022 is an apocalyptic number.

51885220022 is a deficient number, since it is larger than the sum of its proper divisors (33362303338).

51885220022 is a wasteful number, since it uses less digits than its factorization.

51885220022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52621975.

The product of its (nonzero) digits is 25600, while the sum is 35.

Adding to 51885220022 its reverse (22002258815), we get a palindrome (73887478837).

The spelling of 51885220022 in words is "fifty-one billion, eight hundred eighty-five million, two hundred twenty thousand, twenty-two".