23636225 has 12 divisors (see below), whose sum is σ = 29462400. Its totient is φ = 18810000.

The previous prime is 23636183. The next prime is 23636227. The reversal of 23636225 is 52263632.

It is not a de Polignac number, because 23636225 - 2⁶ = 23636161 is a prime.

It is a super-2 number, since 2×23636225² = 1117342264501250, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23636227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2600 + ... + 7350.

It is an arithmetic number, because the mean of its divisors is an integer number (2455200).

Almost surely, 2^23636225 is an apocalyptic number.

23636225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23636225 is a deficient number, since it is larger than the sum of its proper divisors (5826175).

23636225 is a wasteful number, since it uses less digits than its factorization.

23636225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960 (or 4955 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 23636225 is about 4861.7100900815. The cubic root of 23636225 is about 286.9851149876.

Adding to 23636225 its reverse (52263632), we get a palindrome (75899857).

The spelling of 23636225 in words is "twenty-three million, six hundred thirty-six thousand, two hundred twenty-five".