51303825013 has 6 divisors (see below), whose sum is σ = 59679959766. Its totient is φ = 43974707112.

The previous prime is 51303824983. The next prime is 51303825019. The reversal of 51303825013 is 31052830315.

It can be written as a sum of positive squares in only one way, i.e., 26296514244 + 25007310769 = 162162^2 + 158137^2 .

It is not a de Polignac number, because 51303825013 - 2¹⁷ = 51303693941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51303825019) 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 5 ways as a sum of consecutive naturals, for example, 523508370 + ... + 523508467.

It is an arithmetic number, because the mean of its divisors is an integer number (9946659961).

Almost surely, 2^51303825013 is an apocalyptic number.

It is an amenable number.

51303825013 is a deficient number, since it is larger than the sum of its proper divisors (8376134753).

51303825013 is a wasteful number, since it uses less digits than its factorization.

51303825013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047016851 (or 1047016844 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 51303825013 in words is "fifty-one billion, three hundred three million, eight hundred twenty-five thousand, thirteen".