13290525 has 18 divisors (see below), whose sum is σ = 23805210. Its totient is φ = 7088160.

The previous prime is 13290523. The next prime is 13290533. The reversal of 13290525 is 52509231.

13290525 is a `hidden beast` number, since 132 + 9 + 0 + 525 = 666.

13290525 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 3 ways, for example, as 1879641 + 11410884 = 1371^2 + 3378^2 .

It is not a de Polignac number, because 13290525 - 2¹ = 13290523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290523) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29310 + ... + 29759.

Almost surely, 2^13290525 is an apocalyptic number.

13290525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13290525 is a deficient number, since it is larger than the sum of its proper divisors (10514685).

13290525 is a wasteful number, since it uses less digits than its factorization.

13290525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59085 (or 59077 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 13290525 is about 3645.6172316907. The cubic root of 13290525 is about 236.8721737653.

Adding to 13290525 its reverse (52509231), we get a palindrome (65799756).

The spelling of 13290525 in words is "thirteen million, two hundred ninety thousand, five hundred twenty-five".