13506855 has 24 divisors (see below), whose sum is σ = 22354416. Its totient is φ = 6963840.

The previous prime is 13506841. The next prime is 13506863. The reversal of 13506855 is 55860531.

13506855 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13506855 - 2⁶ = 13506791 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13947 + ... + 14883.

It is an arithmetic number, because the mean of its divisors is an integer number (931434).

Almost surely, 2^13506855 is an apocalyptic number.

13506855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13506855 is a deficient number, since it is larger than the sum of its proper divisors (8847561).

13506855 is an equidigital number, since it uses as much as digits as its factorization.

13506855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 976 counting only the distinct ones).

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

The square root of 13506855 is about 3675.1673431287. The cubic root of 13506855 is about 238.1504533245.

The spelling of 13506855 in words is "thirteen million, five hundred six thousand, eight hundred fifty-five".