1725242765 has 16 divisors (see below), whose sum is σ = 2173264128. Its totient is φ = 1312265856.

The previous prime is 1725242759. The next prime is 1725242797. The reversal of 1725242765 is 5672425271.

It is a cyclic number.

It is not a de Polignac number, because 1725242765 - 2⁴ = 1725242749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25712 + ... + 64121.

It is an arithmetic number, because the mean of its divisors is an integer number (135829008).

Almost surely, 2^1725242765 is an apocalyptic number.

It is an amenable number.

1725242765 is a deficient number, since it is larger than the sum of its proper divisors (448021363).

1725242765 is a wasteful number, since it uses less digits than its factorization.

1725242765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90028.

The product of its digits is 235200, while the sum is 41.

The square root of 1725242765 is about 41536.0417589351. The cubic root of 1725242765 is about 1199.3614113882.

The spelling of 1725242765 in words is "one billion, seven hundred twenty-five million, two hundred forty-two thousand, seven hundred sixty-five".