10506565 has 4 divisors (see below), whose sum is σ = 12607884. Its totient is φ = 8405248.

The previous prime is 10506541. The next prime is 10506569. The reversal of 10506565 is 56560501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1258884 + 9247681 = 1122^2 + 3041^2 .

It is a cyclic number.

It is not a de Polignac number, because 10506565 - 2⁵ = 10506533 is a prime.

It is a super-2 number, since 2×10506565² = 220775816198450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10506569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050652 + ... + 1050661.

It is an arithmetic number, because the mean of its divisors is an integer number (3151971).

Almost surely, 2^10506565 is an apocalyptic number.

It is an amenable number.

10506565 is a deficient number, since it is larger than the sum of its proper divisors (2101319).

10506565 is an equidigital number, since it uses as much as digits as its factorization.

10506565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2101318.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 10506565 is about 3241.3831924041. The cubic root of 10506565 is about 219.0215848564.

The spelling of 10506565 in words is "ten million, five hundred six thousand, five hundred sixty-five".