565130261 has 8 divisors (see below), whose sum is σ = 576331200. Its totient is φ = 553983520.

The previous prime is 565130257. The next prime is 565130273. The reversal of 565130261 is 162031565.

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 565130261 - 2² = 565130257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565139261) 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, 7841 + ... + 34521.

It is an arithmetic number, because the mean of its divisors is an integer number (72041400).

Almost surely, 2^565130261 is an apocalyptic number.

It is an amenable number.

565130261 is a deficient number, since it is larger than the sum of its proper divisors (11200939).

565130261 is a wasteful number, since it uses less digits than its factorization.

565130261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27099.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 565130261 is about 23772.4685508258. The cubic root of 565130261 is about 826.7664683061.

The spelling of 565130261 in words is "five hundred sixty-five million, one hundred thirty thousand, two hundred sixty-one".