13133525 has 12 divisors (see below), whose sum is σ = 16331172. Its totient is φ = 10477440.

The previous prime is 13133507. The next prime is 13133531. The reversal of 13133525 is 52533131.

13133525 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 6 ways, for example, as 806404 + 12327121 = 898^2 + 3511^2 .

It is not a de Polignac number, because 13133525 - 2⁸ = 13133269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13133525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14897 + ... + 15753.

It is an arithmetic number, because the mean of its divisors is an integer number (1360931).

Almost surely, 2^13133525 is an apocalyptic number.

It is an amenable number.

13133525 is a deficient number, since it is larger than the sum of its proper divisors (3197647).

13133525 is an equidigital number, since it uses as much as digits as its factorization.

13133525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1475 counting only the distinct ones).

The product of its digits is 1350, while the sum is 23.

The square root of 13133525 is about 3624.0205573368. The cubic root of 13133525 is about 235.9357588720.

Adding to 13133525 its reverse (52533131), we get a palindrome (65666656).

The spelling of 13133525 in words is "thirteen million, one hundred thirty-three thousand, five hundred twenty-five".