13561655 has 8 divisors (see below), whose sum is σ = 16300032. Its totient is φ = 10831968.

The previous prime is 13561621. The next prime is 13561657. The reversal of 13561655 is 55616531.

13561655 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13561655 - 2⁶ = 13561591 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 (13561657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1994 + ... + 5576.

It is an arithmetic number, because the mean of its divisors is an integer number (2037504).

Almost surely, 2^13561655 is an apocalyptic number.

13561655 is a deficient number, since it is larger than the sum of its proper divisors (2738377).

13561655 is an equidigital number, since it uses as much as digits as its factorization.

13561655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345.

The product of its digits is 13500, while the sum is 32.

The square root of 13561655 is about 3682.6152392016. The cubic root of 13561655 is about 238.4720933320.

The spelling of 13561655 in words is "thirteen million, five hundred sixty-one thousand, six hundred fifty-five".