65533056 has 64 divisors (see below), whose sum is σ = 175342080. Its totient is φ = 21685248.

The previous prime is 65533051. The next prime is 65533057. The reversal of 65533056 is 65033556.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (65533051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59745 + ... + 60831.

It is an arithmetic number, because the mean of its divisors is an integer number (2739720).

Almost surely, 2^65533056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65533056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87671040).

65533056 is an abundant number, since it is smaller than the sum of its proper divisors (109809024).

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

65533056 is a wasteful number, since it uses less digits than its factorization.

65533056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1249 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 33.

The square root of 65533056 is about 8095.2489770235. The cubic root of 65533056 is about 403.1686987543.

Subtracting from 65533056 its reverse (65033556), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 65533056 in words is "sixty-five million, five hundred thirty-three thousand, fifty-six".