3725725729 has 16 divisors (see below), whose sum is σ = 4451915520. Its totient is φ = 3077858560.

The previous prime is 3725725711. The next prime is 3725725849. The reversal of 3725725729 is 9275275273.

It is a cyclic number.

It is not a de Polignac number, because 3725725729 - 2⁵ = 3725725697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3725725429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 338089 + ... + 348934.

It is an arithmetic number, because the mean of its divisors is an integer number (278244720).

Almost surely, 2^3725725729 is an apocalyptic number.

It is an amenable number.

3725725729 is a deficient number, since it is larger than the sum of its proper divisors (726189791).

3725725729 is a wasteful number, since it uses less digits than its factorization.

3725725729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687080.

The product of its digits is 1852200, while the sum is 49.

The square root of 3725725729 is about 61038.7231927405. The cubic root of 3725725729 is about 1550.2567356901.

The spelling of 3725725729 in words is "three billion, seven hundred twenty-five million, seven hundred twenty-five thousand, seven hundred twenty-nine".