40663825 has 12 divisors (see below), whose sum is σ = 50627340. Its totient is φ = 32399360.

The previous prime is 40663811. The next prime is 40663837. The reversal of 40663825 is 52836604.

It is a happy number.

40663825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 4194304 + 36469521 = 2048^2 + 6039^2 .

It is not a de Polignac number, because 40663825 - 2⁹ = 40663313 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3261 + ... + 9589.

It is an arithmetic number, because the mean of its divisors is an integer number (4218945).

Almost surely, 2^40663825 is an apocalyptic number.

It is an amenable number.

40663825 is a deficient number, since it is larger than the sum of its proper divisors (9963515).

40663825 is a wasteful number, since it uses less digits than its factorization.

40663825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596 (or 6591 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 40663825 is about 6376.8193482331. The cubic root of 40663825 is about 343.8766937954.

The spelling of 40663825 in words is "forty million, six hundred sixty-three thousand, eight hundred twenty-five".