65224422 has 24 divisors (see below), whose sum is σ = 146193840. Its totient is φ = 20991600.

The previous prime is 65224417. The next prime is 65224429. The reversal of 65224422 is 22442256.

It is a happy number.

65224422 is a `hidden beast` number, since 652 + 2 + 4 + 4 + 2 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65224429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61954 + ... + 62997.

It is an arithmetic number, because the mean of its divisors is an integer number (6091410).

Almost surely, 2^65224422 is an apocalyptic number.

65224422 is an abundant number, since it is smaller than the sum of its proper divisors (80969418).

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

65224422 is a wasteful number, since it uses less digits than its factorization.

65224422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124988 (or 124985 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 65224422 is about 8076.1638170607. The cubic root of 65224422 is about 402.5347824320.

Adding to 65224422 its reverse (22442256), we get a palindrome (87666678).

The spelling of 65224422 in words is "sixty-five million, two hundred twenty-four thousand, four hundred twenty-two".