65943552 has 48 divisors (see below), whose sum is σ = 175822920. Its totient is φ = 21979136.

The previous prime is 65943551. The next prime is 65943569. The reversal of 65943552 is 25534956.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65943552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65943551) 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 3 ways as a sum of consecutive naturals, for example, 778 + ... + 11510.

Almost surely, 2^65943552 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 65943552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87911460).

65943552 is an abundant number, since it is smaller than the sum of its proper divisors (109879368).

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

65943552 is a wasteful number, since it uses less digits than its factorization.

65943552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10758 (or 10738 counting only the distinct ones).

The product of its digits is 162000, while the sum is 39.

The square root of 65943552 is about 8120.5635272437. The cubic root of 65943552 is about 404.0087571216.

The spelling of 65943552 in words is "sixty-five million, nine hundred forty-three thousand, five hundred fifty-two".