65009952 has 120 divisors (see below), whose sum is σ = 218566656. Its totient is φ = 18569088.

The previous prime is 65009939. The next prime is 65009953. The reversal of 65009952 is 25990056.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (65009953) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16353 + ... + 19935.

Almost surely, 2^65009952 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 65009952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109283328).

65009952 is an abundant number, since it is smaller than the sum of its proper divisors (153556704).

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

65009952 is a wasteful number, since it uses less digits than its factorization.

65009952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612 (or 3595 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 65009952 is about 8062.8749215153. The cubic root of 65009952 is about 402.0930949465.

The spelling of 65009952 in words is "sixty-five million, nine thousand, nine hundred fifty-two".