163432025 has 12 divisors (see below), whose sum is σ = 203532732. Its totient is φ = 130179840.

The previous prime is 163432021. The next prime is 163432037. The reversal of 163432025 is 520234361.

It can be written as a sum of positive squares in 6 ways, for example, as 12559936 + 150872089 = 3544^2 + 12283^2 .

It is not a de Polignac number, because 163432025 - 2² = 163432021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 163431985 and 163432003.

It is not an unprimeable number, because it can be changed into a prime (163432021) 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, 8204 + ... + 19853.

It is an arithmetic number, because the mean of its divisors is an integer number (16961061).

Almost surely, 2^163432025 is an apocalyptic number.

It is an amenable number.

163432025 is a deficient number, since it is larger than the sum of its proper divisors (40100707).

163432025 is a wasteful number, since it uses less digits than its factorization.

163432025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28300 (or 28295 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 163432025 is about 12784.0535433797. The cubic root of 163432025 is about 546.7377408994.

Adding to 163432025 its reverse (520234361), we get a palindrome (683666386).

The spelling of 163432025 in words is "one hundred sixty-three million, four hundred thirty-two thousand, twenty-five".