13655613 has 4 divisors (see below), whose sum is σ = 18207488. Its totient is φ = 9103740.

The previous prime is 13655611. The next prime is 13655633. The reversal of 13655613 is 31655631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13655613 - 2¹ = 13655611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13655611) 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, 2275933 + ... + 2275938.

It is an arithmetic number, because the mean of its divisors is an integer number (4551872).

Almost surely, 2^13655613 is an apocalyptic number.

It is an amenable number.

13655613 is a deficient number, since it is larger than the sum of its proper divisors (4551875).

13655613 is an equidigital number, since it uses as much as digits as its factorization.

13655613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551874.

The product of its digits is 8100, while the sum is 30.

The square root of 13655613 is about 3695.3501863829. The cubic root of 13655613 is about 239.0215546347.

The spelling of 13655613 in words is "thirteen million, six hundred fifty-five thousand, six hundred thirteen".