125671725 has 18 divisors (see below), whose sum is σ = 225092426. Its totient is φ = 67024800.

The previous prime is 125671723. The next prime is 125671729. The reversal of 125671725 is 527176521.

It can be written as a sum of positive squares in 3 ways, for example, as 38118276 + 87553449 = 6174^2 + 9357^2 .

It is not a de Polignac number, because 125671725 - 2¹ = 125671723 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125671725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125671723) 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 17 ways as a sum of consecutive naturals, for example, 279046 + ... + 279495.

Almost surely, 2^125671725 is an apocalyptic number.

125671725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125671725 is a deficient number, since it is larger than the sum of its proper divisors (99420701).

125671725 is a wasteful number, since it uses less digits than its factorization.

125671725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558557 (or 558549 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 125671725 is about 11210.3400929677. The cubic root of 125671725 is about 500.8940337877.

The spelling of 125671725 in words is "one hundred twenty-five million, six hundred seventy-one thousand, seven hundred twenty-five".