65312022 has 8 divisors (see below), whose sum is σ = 130624056. Its totient is φ = 21770672.

The previous prime is 65312021. The next prime is 65312033. The reversal of 65312022 is 22021356.

65312022 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.

65312022 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 65312022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65312021) 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, 5442663 + ... + 5442674.

It is an arithmetic number, because the mean of its divisors is an integer number (16328007).

Almost surely, 2^65312022 is an apocalyptic number.

65312022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65312022 is a wasteful number, since it uses less digits than its factorization.

65312022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10885342.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 65312022 is about 8081.5853642710. The cubic root of 65312022 is about 402.7149106280.

Adding to 65312022 its reverse (22021356), we get a palindrome (87333378).

The spelling of 65312022 in words is "sixty-five million, three hundred twelve thousand, twenty-two".