65035520 has 144 divisors (see below), whose sum is σ = 176601600. Its totient is φ = 22732800.

The previous prime is 65035519. The next prime is 65035541. The reversal of 65035520 is 2553056.

It is a self number, because there is not a number n which added to its sum of digits gives 65035520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436406 + ... + 436554.

It is an arithmetic number, because the mean of its divisors is an integer number (1226400).

Almost surely, 2^65035520 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 65035520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88300800).

65035520 is an abundant number, since it is smaller than the sum of its proper divisors (111566080).

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

65035520 is a wasteful number, since it uses less digits than its factorization.

65035520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 65035520 is about 8064.4603043229. The cubic root of 65035520 is about 402.1458015883.

Adding to 65035520 its reverse (2553056), we get a palindrome (67588576).

The spelling of 65035520 in words is "sixty-five million, thirty-five thousand, five hundred twenty".