8125725 has 12 divisors (see below), whose sum is σ = 13434656. Its totient is φ = 4333680.

The previous prime is 8125723. The next prime is 8125729. The reversal of 8125725 is 5275218.

It is not a de Polignac number, because 8125725 - 2¹ = 8125723 is a prime.

It is a Duffinian number.

It is a Curzon number.

8125725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8125692 and 8125701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8125723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54097 + ... + 54246.

Almost surely, 2^8125725 is an apocalyptic number.

It is an amenable number.

8125725 is a deficient number, since it is larger than the sum of its proper divisors (5308931).

8125725 is a wasteful number, since it uses less digits than its factorization.

8125725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108356 (or 108351 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 8125725 is about 2850.5657333238. The cubic root of 8125725 is about 201.0422672925.

The spelling of 8125725 in words is "eight million, one hundred twenty-five thousand, seven hundred twenty-five".