65452212 has 60 divisors (see below), whose sum is σ = 195555360. Its totient is φ = 18699984.

The previous prime is 65452187. The next prime is 65452213. The reversal of 65452212 is 21225456.

65452212 is a `hidden beast` number, since 654 + 5 + 2 + 2 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65452213) 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, 12162 + ... + 16697.

It is an arithmetic number, because the mean of its divisors is an integer number (3259256).

Almost surely, 2^65452212 is an apocalyptic number.

It is an amenable number.

65452212 is an abundant number, since it is smaller than the sum of its proper divisors (130103148).

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

65452212 is a wasteful number, since it uses less digits than its factorization.

65452212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28882 (or 28871 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 65452212 is about 8090.2541369230. The cubic root of 65452212 is about 403.0028425975.

Adding to 65452212 its reverse (21225456), we get a palindrome (86677668).

The spelling of 65452212 in words is "sixty-five million, four hundred fifty-two thousand, two hundred twelve".