65015232 has 56 divisors (see below), whose sum is σ = 172736256. Its totient is φ = 21581568.

The previous prime is 65015221. The next prime is 65015239. The reversal of 65015232 is 23251056.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65015239) 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, 58393 + ... + 59495.

It is an arithmetic number, because the mean of its divisors is an integer number (3084576).

Almost surely, 2^65015232 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 65015232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86368128).

65015232 is an abundant number, since it is smaller than the sum of its proper divisors (107721024).

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

65015232 is a wasteful number, since it uses less digits than its factorization.

65015232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425 (or 1415 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 65015232 is about 8063.2023415018. The cubic root of 65015232 is about 402.1039804289.

Adding to 65015232 its reverse (23251056), we get a palindrome (88266288).

The spelling of 65015232 in words is "sixty-five million, fifteen thousand, two hundred thirty-two".