3825666403 has 16 divisors (see below), whose sum is σ = 4176990720. Its totient is φ = 3482597664.

The previous prime is 3825666391. The next prime is 3825666407. The reversal of 3825666403 is 3046665283.

It is not a de Polignac number, because 3825666403 - 2⁵ = 3825666371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3825666403.

It is not an unprimeable number, because it can be changed into a prime (3825666407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192800 + ... + 1196002.

It is an arithmetic number, because the mean of its divisors is an integer number (261061920).

Almost surely, 2^3825666403 is an apocalyptic number.

3825666403 is a deficient number, since it is larger than the sum of its proper divisors (351324317).

3825666403 is a wasteful number, since it uses less digits than its factorization.

3825666403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458.

The product of its (nonzero) digits is 622080, while the sum is 43.

The square root of 3825666403 is about 61851.9716985643. The cubic root of 3825666403 is about 1563.9962196813.

The spelling of 3825666403 in words is "three billion, eight hundred twenty-five million, six hundred sixty-six thousand, four hundred three".