65641232 has 10 divisors (see below), whose sum is σ = 127179918. Its totient is φ = 32820608.

The previous prime is 65641223. The next prime is 65641237. The reversal of 65641232 is 23214656.

65641232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46840336 + 18800896 = 6844^2 + 4336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65641195 and 65641204.

It is not an unprimeable number, because it can be changed into a prime (65641237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2051273 + ... + 2051304.

Almost surely, 2^65641232 is an apocalyptic number.

It is an amenable number.

65641232 is a deficient number, since it is larger than the sum of its proper divisors (61538686).

65641232 is a wasteful number, since it uses less digits than its factorization.

65641232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102585 (or 4102579 counting only the distinct ones).

The product of its digits is 8640, while the sum is 29.

The square root of 65641232 is about 8101.9276718569. The cubic root of 65641232 is about 403.3904148583.

Adding to 65641232 its reverse (23214656), we get a palindrome (88855888).

The spelling of 65641232 in words is "sixty-five million, six hundred forty-one thousand, two hundred thirty-two".