13613355 has 48 divisors (see below), whose sum is σ = 28154880. Its totient is φ = 5949504.

The previous prime is 13613333. The next prime is 13613357. The reversal of 13613355 is 55331631.

13613355 is a `hidden beast` number, since 13 + 613 + 35 + 5 = 666.

13613355 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13613355 - 2⁷ = 13613227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13613357) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6306 + ... + 8184.

It is an arithmetic number, because the mean of its divisors is an integer number (586560).

Almost surely, 2^13613355 is an apocalyptic number.

13613355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13613355 is an abundant number, since it is smaller than the sum of its proper divisors (14541525).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13613355 is a wasteful number, since it uses less digits than its factorization.

13613355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1917 counting only the distinct ones).

The product of its digits is 4050, while the sum is 27.

The square root of 13613355 is about 3689.6280300323. The cubic root of 13613355 is about 238.7747450207.

Adding to 13613355 its reverse (55331631), we get a palindrome (68944986).

The spelling of 13613355 in words is "thirteen million, six hundred thirteen thousand, three hundred fifty-five".