13052565 has 12 divisors (see below), whose sum is σ = 22624524. Its totient is φ = 6961344.

The previous prime is 13052561. The next prime is 13052573. The reversal of 13052565 is 56525031.

13052565 is a `hidden beast` number, since 130 + 525 + 6 + 5 = 666.

13052565 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6380676 + 6671889 = 2526^2 + 2583^2 .

It is not a de Polignac number, because 13052565 - 2² = 13052561 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13052561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144984 + ... + 145073.

It is an arithmetic number, because the mean of its divisors is an integer number (1885377).

Almost surely, 2^13052565 is an apocalyptic number.

13052565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13052565 is a deficient number, since it is larger than the sum of its proper divisors (9571959).

13052565 is a wasteful number, since it uses less digits than its factorization.

13052565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290068 (or 290065 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 13052565 is about 3612.8333756209. The cubic root of 13052565 is about 235.4499602933.

Adding to 13052565 its reverse (56525031), we get a palindrome (69577596).

The spelling of 13052565 in words is "thirteen million, fifty-two thousand, five hundred sixty-five".