51512044882 has 4 divisors (see below), whose sum is σ = 77268067326. Its totient is φ = 25756022440.

The previous prime is 51512044849. The next prime is 51512044907. The reversal of 51512044882 is 28844021515.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41860750801 + 9651294081 = 204599^2 + 98241^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12878011219 + ... + 12878011222.

Almost surely, 2^51512044882 is an apocalyptic number.

51512044882 is a deficient number, since it is larger than the sum of its proper divisors (25756022444).

51512044882 is a wasteful number, since it uses less digits than its factorization.

51512044882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25756022443.

The product of its (nonzero) digits is 102400, while the sum is 40.

The spelling of 51512044882 in words is "fifty-one billion, five hundred twelve million, forty-four thousand, eight hundred eighty-two".