51512251122 has 48 divisors (see below), whose sum is σ = 111866576640. Its totient is φ = 17131313376.

The previous prime is 51512251099. The next prime is 51512251127. The reversal of 51512251122 is 22115221515.

51512251122 is a `hidden beast` number, since 5 + 1 + 5 + 122 + 511 + 22 = 666.

It is not an unprimeable number, because it can be changed into a prime (51512251127) 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 23 ways as a sum of consecutive naturals, for example, 23381673 + ... + 23383875.

It is an arithmetic number, because the mean of its divisors is an integer number (2330553680).

Almost surely, 2^51512251122 is an apocalyptic number.

51512251122 is an abundant number, since it is smaller than the sum of its proper divisors (60354325518).

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

51512251122 is a wasteful number, since it uses less digits than its factorization.

51512251122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4607 (or 4604 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

Adding to 51512251122 its reverse (22115221515), we get a palindrome (73627472637).

The spelling of 51512251122 in words is "fifty-one billion, five hundred twelve million, two hundred fifty-one thousand, one hundred twenty-two".