51053910388 has 24 divisors (see below), whose sum is σ = 96337787112. Its totient is φ = 23533759104.

The previous prime is 51053910379. The next prime is 51053910389. The reversal of 51053910388 is 88301935015.

It can be written as a sum of positive squares in 4 ways, for example, as 33039504 + 51020870884 = 5748^2 + 225878^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51053910389) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 574495 + ... + 657382.

It is an arithmetic number, because the mean of its divisors is an integer number (4014074463).

Almost surely, 2^51053910388 is an apocalyptic number.

It is an amenable number.

51053910388 is a deficient number, since it is larger than the sum of its proper divisors (45283876724).

51053910388 is a wasteful number, since it uses less digits than its factorization.

51053910388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232691 (or 1232689 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 51053910388 in words is "fifty-one billion, fifty-three million, nine hundred ten thousand, three hundred eighty-eight".