40536225 has 18 divisors (see below), whose sum is σ = 72605286. Its totient is φ = 21619200.

The previous prime is 40536179. The next prime is 40536259. The reversal of 40536225 is 52263504.

40536225 is a `hidden beast` number, since 405 + 36 + 225 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 239121 + 40297104 = 489^2 + 6348^2 .

It is not a de Polignac number, because 40536225 - 2¹⁴ = 40519841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 89856 + ... + 90305.

It is an arithmetic number, because the mean of its divisors is an integer number (4033627).

Almost surely, 2^40536225 is an apocalyptic number.

40536225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40536225 is a deficient number, since it is larger than the sum of its proper divisors (32069061).

40536225 is a wasteful number, since it uses less digits than its factorization.

40536225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180177 (or 180169 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 40536225 is about 6366.8064993370. The cubic root of 40536225 is about 343.5166305837.

Adding to 40536225 its reverse (52263504), we get a palindrome (92799729).

The spelling of 40536225 in words is "forty million, five hundred thirty-six thousand, two hundred twenty-five".