13865055 has 8 divisors (see below), whose sum is σ = 22184112. Its totient is φ = 7394688.

The previous prime is 13865051. The next prime is 13865063. The reversal of 13865055 is 55056831.

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

It is not a de Polignac number, because 13865055 - 2² = 13865051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13865051) 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 7 ways as a sum of consecutive naturals, for example, 462154 + ... + 462183.

It is an arithmetic number, because the mean of its divisors is an integer number (2773014).

Almost surely, 2^13865055 is an apocalyptic number.

13865055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13865055 is a deficient number, since it is larger than the sum of its proper divisors (8319057).

13865055 is an equidigital number, since it uses as much as digits as its factorization.

13865055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924345.

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 13865055 is about 3723.5809377533. The cubic root of 13865055 is about 240.2373519950.

It can be divided in two parts, 1386 and 5055, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 13865055 in words is "thirteen million, eight hundred sixty-five thousand, fifty-five".