13325405 has 4 divisors (see below), whose sum is σ = 15990492. Its totient is φ = 10660320.

The previous prime is 13325387. The next prime is 13325407. The reversal of 13325405 is 50452331.

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 7689529 + 5635876 = 2773^2 + 2374^2 .

It is not a de Polignac number, because 13325405 - 2⁸ = 13325149 is a prime.

It is a super-3 number, since 3×13325405³ (a number of 22 digits) contains 333 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 (13325407) 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 3 ways as a sum of consecutive naturals, for example, 1332536 + ... + 1332545.

It is an arithmetic number, because the mean of its divisors is an integer number (3997623).

Almost surely, 2^13325405 is an apocalyptic number.

It is an amenable number.

13325405 is a deficient number, since it is larger than the sum of its proper divisors (2665087).

13325405 is an equidigital number, since it uses as much as digits as its factorization.

13325405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665086.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13325405 is about 3650.3979235146. The cubic root of 13325405 is about 237.0792105875.

Adding to 13325405 its reverse (50452331), we get a palindrome (63777736).

The spelling of 13325405 in words is "thirteen million, three hundred twenty-five thousand, four hundred five".