65315222 has 8 divisors (see below), whose sum is σ = 111968976. Its totient is φ = 27992232.

The previous prime is 65315219. The next prime is 65315227. The reversal of 65315222 is 22251356.

65315222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 65315191 and 65315200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65315227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2332673 + ... + 2332700.

It is an arithmetic number, because the mean of its divisors is an integer number (13996122).

Almost surely, 2^65315222 is an apocalyptic number.

65315222 is a deficient number, since it is larger than the sum of its proper divisors (46653754).

65315222 is a wasteful number, since it uses less digits than its factorization.

65315222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665382.

The product of its digits is 3600, while the sum is 26.

The square root of 65315222 is about 8081.7833428025. The cubic root of 65315222 is about 402.7214876033.

Adding to 65315222 its reverse (22251356), we get a palindrome (87566578).

The spelling of 65315222 in words is "sixty-five million, three hundred fifteen thousand, two hundred twenty-two".