13252405 has 16 divisors (see below), whose sum is σ = 16848000. Its totient is φ = 9979200.

The previous prime is 13252397. The next prime is 13252409. The reversal of 13252405 is 50425231.

It is not a de Polignac number, because 13252405 - 2³ = 13252397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13252409) 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 15 ways as a sum of consecutive naturals, for example, 18555 + ... + 19255.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 2^13252405 is an apocalyptic number.

It is an amenable number.

13252405 is a deficient number, since it is larger than the sum of its proper divisors (3595595).

13252405 is a wasteful number, since it uses less digits than its factorization.

13252405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13252405 is about 3640.3852818074. The cubic root of 13252405 is about 236.6454906222.

Adding to 13252405 its reverse (50425231), we get a palindrome (63677636).

The spelling of 13252405 in words is "thirteen million, two hundred fifty-two thousand, four hundred five".