43685225 has 12 divisors (see below), whose sum is σ = 54587280. Its totient is φ = 34678800.

The previous prime is 43685207. The next prime is 43685233. The reversal of 43685225 is 52258634.

43685225 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 43685225 - 2⁸ = 43684969 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, 3395 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (4548940).

Almost surely, 2^43685225 is an apocalyptic number.

It is an amenable number.

43685225 is a deficient number, since it is larger than the sum of its proper divisors (10902055).

43685225 is a wasteful number, since it uses less digits than its factorization.

43685225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480 (or 13475 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 43685225 is about 6609.4799341552. The cubic root of 43685225 is about 352.1909502227.

The spelling of 43685225 in words is "forty-three million, six hundred eighty-five thousand, two hundred twenty-five".