36686225 has 12 divisors (see below), whose sum is σ = 45687180. Its totient is φ = 29222400.

The previous prime is 36686213. The next prime is 36686227. The reversal of 36686225 is 52268663.

36686225 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 877969 + 35808256 = 937^2 + 5984^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36686225 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36686227) 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 11 ways as a sum of consecutive naturals, for example, 2981 + ... + 9069.

It is an arithmetic number, because the mean of its divisors is an integer number (3807265).

Almost surely, 2^36686225 is an apocalyptic number.

It is an amenable number.

36686225 is a deficient number, since it is larger than the sum of its proper divisors (9000955).

36686225 is a wasteful number, since it uses less digits than its factorization.

36686225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6340 (or 6335 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 36686225 is about 6056.9154691146. The cubic root of 36686225 is about 332.2775567602.

The spelling of 36686225 in words is "thirty-six million, six hundred eighty-six thousand, two hundred twenty-five".