51256373122 has 32 divisors (see below), whose sum is σ = 79399822320. Its totient is φ = 24800762880.

The previous prime is 51256373101. The next prime is 51256373123. The reversal of 51256373122 is 22137365215.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 905949801 + 50350423321 = 30099^2 + 224389^2 .

It is not an unprimeable number, because it can be changed into a prime (51256373123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5134528 + ... + 5144500.

Almost surely, 2^51256373122 is an apocalyptic number.

51256373122 is a deficient number, since it is larger than the sum of its proper divisors (28143449198).

51256373122 is a wasteful number, since it uses less digits than its factorization.

51256373122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518.

The product of its digits is 75600, while the sum is 37.

The spelling of 51256373122 in words is "fifty-one billion, two hundred fifty-six million, three hundred seventy-three thousand, one hundred twenty-two".