51725607685 has 16 divisors (see below), whose sum is σ = 66835886400. Its totient is φ = 38286228736.

The previous prime is 51725607653. The next prime is 51725607691. The reversal of 51725607685 is 58670652715.

It is a cyclic number.

It is not a de Polignac number, because 51725607685 - 2⁵ = 51725607653 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 5152075 + ... + 5162104.

It is an arithmetic number, because the mean of its divisors is an integer number (4177242900).

Almost surely, 2^51725607685 is an apocalyptic number.

It is an amenable number.

51725607685 is a deficient number, since it is larger than the sum of its proper divisors (15110278715).

51725607685 is a wasteful number, since it uses less digits than its factorization.

51725607685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10314260.

The product of its (nonzero) digits is 3528000, while the sum is 52.

The spelling of 51725607685 in words is "fifty-one billion, seven hundred twenty-five million, six hundred seven thousand, six hundred eighty-five".