65004500 has 96 divisors (see below), whose sum is σ = 158505984. Its totient is φ = 23088000.

The previous prime is 65004497. The next prime is 65004517. The reversal of 65004500 is 540056.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291389 + ... + 291611.

It is an arithmetic number, because the mean of its divisors is an integer number (1651104).

Almost surely, 2^65004500 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 65004500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79252992).

65004500 is an abundant number, since it is smaller than the sum of its proper divisors (93501484).

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

65004500 is a wasteful number, since it uses less digits than its factorization.

65004500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 65004500 is about 8062.5368216213. The cubic root of 65004500 is about 402.0818542427.

Adding to 65004500 its reverse (540056), we get a palindrome (65544556).

The spelling of 65004500 in words is "sixty-five million, four thousand, five hundred".