51325245320512 has 28 divisors (see below), whose sum is σ = 103770204136596. Its totient is φ = 25178422231040.

The previous prime is 51325245320483. The next prime is 51325245320549. The reversal of 51325245320512 is 21502354252315.

It can be written as a sum of positive squares in 2 ways, for example, as 19931367375936 + 31393877944576 = 4464456^2 + 5603024^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7565628289 + ... + 7565635072.

Almost surely, 2^{51325245320512} is an apocalyptic number.

It is an amenable number.

51325245320512 is an abundant number, since it is smaller than the sum of its proper divisors (52444958816084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51325245320512 is a wasteful number, since it uses less digits than its factorization.

51325245320512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15131263426 (or 15131263416 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 51325245320512 its reverse (21502354252315), we get a palindrome (72827599572827).

The spelling of 51325245320512 in words is "fifty-one trillion, three hundred twenty-five billion, two hundred forty-five million, three hundred twenty thousand, five hundred twelve".