13506025 has 24 divisors (see below), whose sum is σ = 18670680. Its totient is φ = 9623040.

The previous prime is 13506019. The next prime is 13506029. The reversal of 13506025 is 52060531.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 3545689 + 9960336 = 1883^2 + 3156^2 .

It is not a de Polignac number, because 13506025 - 2⁵ = 13505993 is a prime.

It is a super-2 number, since 2×13506025² = 364825422601250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13505987 and 13506005.

It is not an unprimeable number, because it can be changed into a prime (13506029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8709 + ... + 10141.

It is an arithmetic number, because the mean of its divisors is an integer number (777945).

Almost surely, 2^13506025 is an apocalyptic number.

It is an amenable number.

13506025 is a deficient number, since it is larger than the sum of its proper divisors (5164655).

13506025 is a wasteful number, since it uses less digits than its factorization.

13506025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1485 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13506025 is about 3675.0544213658. The cubic root of 13506025 is about 238.1455750874.

Adding to 13506025 its reverse (52060531), we get a palindrome (65566556).

The spelling of 13506025 in words is "thirteen million, five hundred six thousand, twenty-five".