65543328 has 36 divisors (see below), whose sum is σ = 186389658. Its totient is φ = 21847680.

The previous prime is 65543327. The next prime is 65543389. The reversal of 65543328 is 82334556.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49956624 + 15586704 = 7068^2 + 3948^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 65543292 and 65543301.

It is not an unprimeable number, because it can be changed into a prime (65543323) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 113503 + ... + 114078.

Almost surely, 2^65543328 is an apocalyptic number.

It is an amenable number.

65543328 is an abundant number, since it is smaller than the sum of its proper divisors (120846330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65543328 is a wasteful number, since it uses less digits than its factorization.

65543328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227597 (or 227586 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 65543328 is about 8095.8833983698. The cubic root of 65543328 is about 403.1897625897.

The spelling of 65543328 in words is "sixty-five million, five hundred forty-three thousand, three hundred twenty-eight".