13005655 has 8 divisors (see below), whose sum is σ = 16807392. Its totient is φ = 9604128.

The previous prime is 13005637. The next prime is 13005673. The reversal of 13005655 is 55650031.

It is an interprime number because it is at equal distance from previous prime (13005637) and next prime (13005673).

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 13005655 - 2⁵ = 13005623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99979 + ... + 100108.

It is an arithmetic number, because the mean of its divisors is an integer number (2100924).

Almost surely, 2^13005655 is an apocalyptic number.

13005655 is a deficient number, since it is larger than the sum of its proper divisors (3801737).

13005655 is a wasteful number, since it uses less digits than its factorization.

13005655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200105.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 13005655 is about 3606.3353976024. The cubic root of 13005655 is about 235.1675581826.

Adding to 13005655 its reverse (55650031), we get a palindrome (68655686).

The spelling of 13005655 in words is "thirteen million, five thousand, six hundred fifty-five".