51725173 has 8 divisors (see below), whose sum is σ = 53188256. Its totient is φ = 50274000.

The previous prime is 51725161. The next prime is 51725197. The reversal of 51725173 is 37152715.

51725173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51725173 - 2²¹ = 49628021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51725573) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6223 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (6648532).

Almost surely, 2^51725173 is an apocalyptic number.

It is an amenable number.

51725173 is a deficient number, since it is larger than the sum of its proper divisors (1463083).

51725173 is a wasteful number, since it uses less digits than its factorization.

51725173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955.

The product of its digits is 7350, while the sum is 31.

The square root of 51725173 is about 7192.0214821704. The cubic root of 51725173 is about 372.5923930386.

Adding to 51725173 its reverse (37152715), we get a palindrome (88877888).

The spelling of 51725173 in words is "fifty-one million, seven hundred twenty-five thousand, one hundred seventy-three".