65217852 has 96 divisors (see below), whose sum is σ = 194557440. Its totient is φ = 18506880.

The previous prime is 65217847. The next prime is 65217869. The reversal of 65217852 is 25871256.

It is a happy number.

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

Its product of digits (33600) is a multiple of the sum of its prime divisors (600).

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, 212283 + ... + 212589.

It is an arithmetic number, because the mean of its divisors is an integer number (2026640).

Almost surely, 2^65217852 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 65217852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97278720).

65217852 is an abundant number, since it is smaller than the sum of its proper divisors (129339588).

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

65217852 is a wasteful number, since it uses less digits than its factorization.

65217852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 600 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 65217852 is about 8075.7570542953. The cubic root of 65217852 is about 402.5212663172.

The spelling of 65217852 in words is "sixty-five million, two hundred seventeen thousand, eight hundred fifty-two".