3661004525 has 6 divisors (see below), whose sum is σ = 4539645642. Its totient is φ = 2928803600.

The previous prime is 3661004497. The next prime is 3661004549. The reversal of 3661004525 is 5254001663.

It can be written as a sum of positive squares in 3 ways, for example, as 810939529 + 2850064996 = 28477^2 + 53386^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3661004525 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3661004491 and 3661004500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73220066 + ... + 73220115.

It is an arithmetic number, because the mean of its divisors is an integer number (756607607).

Almost surely, 2^3661004525 is an apocalyptic number.

It is an amenable number.

3661004525 is a deficient number, since it is larger than the sum of its proper divisors (878641117).

3661004525 is a wasteful number, since it uses less digits than its factorization.

3661004525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146440191 (or 146440186 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 3661004525 is about 60506.2354224753. The cubic root of 3661004525 is about 1541.2275203387.

The spelling of 3661004525 in words is "three billion, six hundred sixty-one million, four thousand, five hundred twenty-five".