13655911 has 4 divisors (see below), whose sum is σ = 13989024. Its totient is φ = 13322800.

The previous prime is 13655881. The next prime is 13655933. The reversal of 13655911 is 11955631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11955631 = 1847 ⋅6473.

It is a cyclic number.

It is not a de Polignac number, because 13655911 - 2¹⁹ = 13131623 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 (13655311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166495 + ... + 166576.

It is an arithmetic number, because the mean of its divisors is an integer number (3497256).

Almost surely, 2^13655911 is an apocalyptic number.

13655911 is a deficient number, since it is larger than the sum of its proper divisors (333113).

13655911 is an equidigital number, since it uses as much as digits as its factorization.

13655911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333112.

The product of its digits is 4050, while the sum is 31.

The square root of 13655911 is about 3695.3905071048. The cubic root of 13655911 is about 239.0232933069.

The spelling of 13655911 in words is "thirteen million, six hundred fifty-five thousand, nine hundred eleven".