10217565 has 24 divisors (see below), whose sum is σ = 18091008. Its totient is φ = 5332320.

The previous prime is 10217563. The next prime is 10217579. The reversal of 10217565 is 56571201.

It is not a de Polignac number, because 10217565 - 2¹ = 10217563 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10217563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 301 + ... + 4530.

It is an arithmetic number, because the mean of its divisors is an integer number (753792).

Almost surely, 2^10217565 is an apocalyptic number.

10217565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10217565 is a deficient number, since it is larger than the sum of its proper divisors (7873443).

10217565 is a wasteful number, since it uses less digits than its factorization.

10217565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889 (or 4886 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 10217565 is about 3196.4926090952. The cubic root of 10217565 is about 216.9947049328.

Adding to 10217565 its reverse (56571201), we get a palindrome (66788766).

The spelling of 10217565 in words is "ten million, two hundred seventeen thousand, five hundred sixty-five".