65297232 has 320 divisors, whose sum is σ = 253317120. Its totient is φ = 15552000.

The previous prime is 65297203. The next prime is 65297233. The reversal of 65297232 is 23279256.

65297232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65297233) 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 in 63 ways as a sum of consecutive naturals, for example, 432357 + ... + 432507.

It is an arithmetic number, because the mean of its divisors is an integer number (791616).

Almost surely, 2^65297232 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 65297232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126658560).

65297232 is an abundant number, since it is smaller than the sum of its proper divisors (188019888).

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

65297232 is a wasteful number, since it uses less digits than its factorization.

65297232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 187 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 65297232 is about 8080.6702692289. The cubic root of 65297232 is about 402.6845098789.

The spelling of 65297232 in words is "sixty-five million, two hundred ninety-seven thousand, two hundred thirty-two".