51544425325 has 6 divisors (see below), whose sum is σ = 63915087434. Its totient is φ = 41235540240.

The previous prime is 51544425301. The next prime is 51544425353. The reversal of 51544425325 is 52352444515.

It can be written as a sum of positive squares in 3 ways, for example, as 353552809 + 51190872516 = 18803^2 + 226254^2 .

It is not a de Polignac number, because 51544425325 - 2¹⁹ = 51543901037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1030888482 + ... + 1030888531.

Almost surely, 2^51544425325 is an apocalyptic number.

It is an amenable number.

51544425325 is a deficient number, since it is larger than the sum of its proper divisors (12370662109).

51544425325 is a wasteful number, since it uses less digits than its factorization.

51544425325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061777023 (or 2061777018 counting only the distinct ones).

The product of its digits is 480000, while the sum is 40.

The spelling of 51544425325 in words is "fifty-one billion, five hundred forty-four million, four hundred twenty-five thousand, three hundred twenty-five".