51330502225 has 12 divisors (see below), whose sum is σ = 63972924444. Its totient is φ = 40855949120.

The previous prime is 51330502199. The next prime is 51330502319. The reversal of 51330502225 is 52220503315.

It can be written as a sum of positive squares in 6 ways, for example, as 6272798401 + 45057703824 = 79201^2 + 212268^2 .

It is not a de Polignac number, because 51330502225 - 2⁹ = 51330501713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51330502193 and 51330502202.

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 in 11 ways as a sum of consecutive naturals, for example, 5206294 + ... + 5216143.

It is an arithmetic number, because the mean of its divisors is an integer number (5331077037).

Almost surely, 2^51330502225 is an apocalyptic number.

It is an amenable number.

51330502225 is a deficient number, since it is larger than the sum of its proper divisors (12642422219).

51330502225 is a wasteful number, since it uses less digits than its factorization.

51330502225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422644 (or 10422639 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 51330502225 in words is "fifty-one billion, three hundred thirty million, five hundred two thousand, two hundred twenty-five".