51725425307705 has 16 divisors (see below), whose sum is σ = 62121553545744. Its totient is φ = 41346325463040.

The previous prime is 51725425307701. The next prime is 51725425307767. The reversal of 51725425307705 is 50770352452715.

51725425307705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 10010206259881 + 41715219047824 = 3163891^2 + 6458732^2 .

It is not a de Polignac number, because 51725425307705 - 2² = 51725425307701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51725425307701) 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 15 ways as a sum of consecutive naturals, for example, 28764665 + ... + 30509945.

It is an arithmetic number, because the mean of its divisors is an integer number (3882597096609).

Almost surely, 2^{51725425307705} is an apocalyptic number.

It is an amenable number.

51725425307705 is a deficient number, since it is larger than the sum of its proper divisors (10396128238039).

51725425307705 is a wasteful number, since it uses less digits than its factorization.

51725425307705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750156.

The product of its (nonzero) digits is 10290000, while the sum is 53.

The spelling of 51725425307705 in words is "fifty-one trillion, seven hundred twenty-five billion, four hundred twenty-five million, three hundred seven thousand, seven hundred five".