65005212 has 24 divisors (see below), whose sum is σ = 160601616. Its totient is φ = 20393728.

The previous prime is 65005201. The next prime is 65005217. The reversal of 65005212 is 21250056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65005217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159123 + ... + 159530.

It is an arithmetic number, because the mean of its divisors is an integer number (6691734).

Almost surely, 2^65005212 is an apocalyptic number.

It is an amenable number.

65005212 is an abundant number, since it is smaller than the sum of its proper divisors (95596404).

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

65005212 is a wasteful number, since it uses less digits than its factorization.

65005212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318677 (or 318675 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 65005212 is about 8062.5809763375. The cubic root of 65005212 is about 402.0833222500.

Adding to 65005212 its reverse (21250056), we get a palindrome (86255268).

The spelling of 65005212 in words is "sixty-five million, five thousand, two hundred twelve".