65560231 has 8 divisors (see below), whose sum is σ = 71599104. Its totient is φ = 59534520.

The previous prime is 65560223. The next prime is 65560247. The reversal of 65560231 is 13206556.

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 65560231 - 2³ = 65560223 is a prime.

It is a super-2 number, since 2×65560231² = 8596287777546722, which contains 22 as substring.

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 65560231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65560031) 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, 9216 + ... + 14698.

It is an arithmetic number, because the mean of its divisors is an integer number (8949888).

Almost surely, 2^65560231 is an apocalyptic number.

65560231 is a deficient number, since it is larger than the sum of its proper divisors (6038873).

65560231 is a wasteful number, since it uses less digits than its factorization.

65560231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 65560231 is about 8096.9272566820. The cubic root of 65560231 is about 403.2244192104.

Adding to 65560231 its reverse (13206556), we get a palindrome (78766787).

The spelling of 65560231 in words is "sixty-five million, five hundred sixty thousand, two hundred thirty-one".