163632325 has 6 divisors (see below), whose sum is σ = 202904114. Its totient is φ = 130905840.

The previous prime is 163632323. The next prime is 163632341. The reversal of 163632325 is 523236361.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 13667809 + 149964516 = 3697^2 + 12246^2 .

It is not a de Polignac number, because 163632325 - 2¹ = 163632323 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163632323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3272622 + ... + 3272671.

Almost surely, 2^163632325 is an apocalyptic number.

It is an amenable number.

163632325 is a deficient number, since it is larger than the sum of its proper divisors (39271789).

163632325 is an equidigital number, since it uses as much as digits as its factorization.

163632325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545303 (or 6545298 counting only the distinct ones).

The product of its digits is 19440, while the sum is 31.

The square root of 163632325 is about 12791.8851229989. The cubic root of 163632325 is about 546.9610077517.

Adding to 163632325 its reverse (523236361), we get a palindrome (686868686).

The spelling of 163632325 in words is "one hundred sixty-three million, six hundred thirty-two thousand, three hundred twenty-five".