13655555 has 4 divisors (see below), whose sum is σ = 16386672. Its totient is φ = 10924440.

The previous prime is 13655533. The next prime is 13655561. The reversal of 13655555 is 55555631.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13655555 - 2¹⁶ = 13590019 is a prime.

It is a Duffinian number.

13655555 is a modest number, since divided by 5555 gives 1365 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365551 + ... + 1365560.

It is an arithmetic number, because the mean of its divisors is an integer number (4096668).

Almost surely, 2^13655555 is an apocalyptic number.

13655555 is a deficient number, since it is larger than the sum of its proper divisors (2731117).

13655555 is an equidigital number, since it uses as much as digits as its factorization.

13655555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731116.

The product of its digits is 56250, while the sum is 35.

The square root of 13655555 is about 3695.3423386745. The cubic root of 13655555 is about 239.0212162325.

The spelling of 13655555 in words is "thirteen million, six hundred fifty-five thousand, five hundred fifty-five".