65272613 has 8 divisors (see below), whose sum is σ = 76184832. Its totient is φ = 54757296.

The previous prime is 65272607. The next prime is 65272621. The reversal of 65272613 is 31627256.

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

It is a cyclic number.

It is not a de Polignac number, because 65272613 - 2⁶ = 65272549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65272613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65272663) 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 7 ways as a sum of consecutive naturals, for example, 98870 + ... + 99527.

It is an arithmetic number, because the mean of its divisors is an integer number (9523104).

Almost surely, 2^65272613 is an apocalyptic number.

It is an amenable number.

65272613 is a deficient number, since it is larger than the sum of its proper divisors (10912219).

65272613 is a wasteful number, since it uses less digits than its factorization.

65272613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198451.

The product of its digits is 15120, while the sum is 32.

The square root of 65272613 is about 8079.1467990129. The cubic root of 65272613 is about 402.6338955020.

Adding to 65272613 its reverse (31627256), we get a palindrome (96899869).

The spelling of 65272613 in words is "sixty-five million, two hundred seventy-two thousand, six hundred thirteen".