65322331 has 4 divisors (see below), whose sum is σ = 65410992. Its totient is φ = 65233672.

The previous prime is 65322329. The next prime is 65322349. The reversal of 65322331 is 13322356.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65322331 - 2¹ = 65322329 is a prime.

It is a super-2 number, since 2×65322331² = 8534013854547122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65322296 and 65322305.

It is not an unprimeable number, because it can be changed into a prime (65322431) 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 3 ways as a sum of consecutive naturals, for example, 43216 + ... + 44701.

It is an arithmetic number, because the mean of its divisors is an integer number (16352748).

Almost surely, 2^65322331 is an apocalyptic number.

65322331 is a deficient number, since it is larger than the sum of its proper divisors (88661).

65322331 is an equidigital number, since it uses as much as digits as its factorization.

65322331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88660.

The product of its digits is 3240, while the sum is 25.

The square root of 65322331 is about 8082.2231471298. The cubic root of 65322331 is about 402.7360979963.

Adding to 65322331 its sum of digits (25), we get a palindrome (65322356).

Adding to 65322331 its reverse (13322356), we get a palindrome (78644687).

The spelling of 65322331 in words is "sixty-five million, three hundred twenty-two thousand, three hundred thirty-one".