163632225 has 24 divisors (see below), whose sum is σ = 286454880. Its totient is φ = 82136320.

The previous prime is 163632197. The next prime is 163632233. The reversal of 163632225 is 522236361.

It is not a de Polignac number, because 163632225 - 2¹⁴ = 163615841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 163632192 and 163632201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62895 + ... + 65444.

It is an arithmetic number, because the mean of its divisors is an integer number (11935620).

Almost surely, 2^163632225 is an apocalyptic number.

163632225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163632225 is a deficient number, since it is larger than the sum of its proper divisors (122822655).

163632225 is a wasteful number, since it uses less digits than its factorization.

163632225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128369 (or 128364 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 163632225 is about 12791.8812142702. The cubic root of 163632225 is about 546.9608963309.

Adding to 163632225 its reverse (522236361), we get a palindrome (685868586).

The spelling of 163632225 in words is "one hundred sixty-three million, six hundred thirty-two thousand, two hundred twenty-five".