3707257725 has 36 divisors (see below), whose sum is σ = 6643387296. Its totient is φ = 1976228640.

The previous prime is 3707257721. The next prime is 3707257733. The reversal of 3707257725 is 5277527073.

It is a happy number.

3707257725 is a `hidden beast` number, since 3 + 7 + 0 + 72 + 577 + 2 + 5 = 666.

It is not a de Polignac number, because 3707257725 - 2² = 3707257721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3707257721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 863434 + ... + 867716.

It is an arithmetic number, because the mean of its divisors is an integer number (184538536).

Almost surely, 2^3707257725 is an apocalyptic number.

It is an amenable number.

3707257725 is a deficient number, since it is larger than the sum of its proper divisors (2936129571).

3707257725 is a wasteful number, since it uses less digits than its factorization.

3707257725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8146 (or 8138 counting only the distinct ones).

The product of its (nonzero) digits is 720300, while the sum is 45.

The square root of 3707257725 is about 60887.2542080853. The cubic root of 3707257725 is about 1547.6910088260.

The spelling of 3707257725 in words is "three billion, seven hundred seven million, two hundred fifty-seven thousand, seven hundred twenty-five".