65115232 has 96 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 25256448.

The previous prime is 65115229. The next prime is 65115247. The reversal of 65115232 is 23251156.

It is a junction number, because it is equal to n+sod(n) for n = 65115197 and 65115206.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 171619 + ... + 171997.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 2^65115232 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 65115232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80438400).

65115232 is an abundant number, since it is smaller than the sum of its proper divisors (95761568).

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

65115232 is a wasteful number, since it uses less digits than its factorization.

65115232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 460 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 65115232 is about 8069.4009690931. The cubic root of 65115232 is about 402.3100336799.

Adding to 65115232 its reverse (23251156), we get a palindrome (88366388).

The spelling of 65115232 in words is "sixty-five million, one hundred fifteen thousand, two hundred thirty-two".