65422031 has 8 divisors (see below), whose sum is σ = 67948560. Its totient is φ = 62935488.

The previous prime is 65422013. The next prime is 65422037. The reversal of 65422031 is 13022456.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65422031 is a prime.

It is a super-2 number, since 2×65422031² = 8560084280329922, 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 = 65421988 and 65422006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65422037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6641 + ... + 13226.

It is an arithmetic number, because the mean of its divisors is an integer number (8493570).

Almost surely, 2^65422031 is an apocalyptic number.

65422031 is a deficient number, since it is larger than the sum of its proper divisors (2526529).

65422031 is a wasteful number, since it uses less digits than its factorization.

65422031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19993.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 65422031 is about 8088.3886528777. The cubic root of 65422031 is about 402.9408895154.

Adding to 65422031 its reverse (13022456), we get a palindrome (78444487).

The spelling of 65422031 in words is "sixty-five million, four hundred twenty-two thousand, thirty-one".