51115303364 has 6 divisors (see below), whose sum is σ = 89451780894. Its totient is φ = 25557651680.

The previous prime is 51115303319. The next prime is 51115303391. The reversal of 51115303364 is 46330351115.

It can be written as a sum of positive squares in only one way, i.e., 32905960000 + 18209343364 = 181400^2 + 134942^2 .

It is a super-2 number, since 2×51115303364² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51115303364.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6389412917 + ... + 6389412924.

It is an arithmetic number, because the mean of its divisors is an integer number (14908630149).

Almost surely, 2^51115303364 is an apocalyptic number.

It is an amenable number.

51115303364 is a deficient number, since it is larger than the sum of its proper divisors (38336477530).

51115303364 is a wasteful number, since it uses less digits than its factorization.

51115303364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778825845 (or 12778825843 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 51115303364 its reverse (46330351115), we get a palindrome (97445654479).

The spelling of 51115303364 in words is "fifty-one billion, one hundred fifteen million, three hundred three thousand, three hundred sixty-four".