13552405 has 16 divisors (see below), whose sum is σ = 17086464. Its totient is φ = 10299520.

The previous prime is 13552393. The next prime is 13552421. The reversal of 13552405 is 50425531.

It is not a de Polignac number, because 13552405 - 2⁵ = 13552373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13552405.

It is a congruent number.

It is an unprimeable number.

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, 21657 + ... + 22273.

It is an arithmetic number, because the mean of its divisors is an integer number (1067904).

Almost surely, 2^13552405 is an apocalyptic number.

It is an amenable number.

13552405 is a deficient number, since it is larger than the sum of its proper divisors (3534059).

13552405 is a wasteful number, since it uses less digits than its factorization.

13552405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 13552405 is about 3681.3591240193. The cubic root of 13552405 is about 238.4178627686.

Adding to 13552405 its reverse (50425531), we get a palindrome (63977936).

The spelling of 13552405 in words is "thirteen million, five hundred fifty-two thousand, four hundred five".