51510332425 has 12 divisors (see below), whose sum is σ = 63985084380. Its totient is φ = 41135832320.

The previous prime is 51510332407. The next prime is 51510332441. The reversal of 51510332425 is 52423301515.

It can be written as a sum of positive squares in 6 ways, for example, as 832668736 + 50677663689 = 28856^2 + 225117^2 .

It is not a de Polignac number, because 51510332425 - 2⁹ = 51510331913 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1796332 + ... + 1824781.

It is an arithmetic number, because the mean of its divisors is an integer number (5332090365).

Almost surely, 2^51510332425 is an apocalyptic number.

It is an amenable number.

51510332425 is a deficient number, since it is larger than the sum of its proper divisors (12474751955).

51510332425 is a wasteful number, since it uses less digits than its factorization.

51510332425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621692 (or 3621687 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The spelling of 51510332425 in words is "fifty-one billion, five hundred ten million, three hundred thirty-two thousand, four hundred twenty-five".