3665727525 has 48 divisors (see below), whose sum is σ = 6362449920. Its totient is φ = 1859851200.

The previous prime is 3665727503. The next prime is 3665727539. The reversal of 3665727525 is 5257275663.

It is a happy number.

3665727525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3665727525 - 2¹¹ = 3665725477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123814 + ... + 150536.

It is an arithmetic number, because the mean of its divisors is an integer number (132551040).

Almost surely, 2^3665727525 is an apocalyptic number.

It is an amenable number.

3665727525 is a deficient number, since it is larger than the sum of its proper divisors (2696722395).

3665727525 is a wasteful number, since it uses less digits than its factorization.

3665727525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26826 (or 26821 counting only the distinct ones).

The product of its digits is 2646000, while the sum is 48.

The square root of 3665727525 is about 60545.2518782439. The cubic root of 3665727525 is about 1541.8900060495.

The spelling of 3665727525 in words is "three billion, six hundred sixty-five million, seven hundred twenty-seven thousand, five hundred twenty-five".