65504712 has 128 divisors (see below), whose sum is σ = 204422400. Its totient is φ = 17031168.

The previous prime is 65504693. The next prime is 65504743. The reversal of 65504712 is 21740556.

It is a self number, because there is not a number n which added to its sum of digits gives 65504712.

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, 194208 + ... + 194544.

It is an arithmetic number, because the mean of its divisors is an integer number (1597050).

Almost surely, 2^65504712 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 65504712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102211200).

65504712 is an abundant number, since it is smaller than the sum of its proper divisors (138917688).

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

65504712 is a wasteful number, since it uses less digits than its factorization.

65504712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 65504712 is about 8093.4981312162. The cubic root of 65504712 is about 403.1105649299.

The spelling of 65504712 in words is "sixty-five million, five hundred four thousand, seven hundred twelve".