13725855 has 96 divisors (see below), whose sum is σ = 29352960. Its totient is φ = 6065280.

The previous prime is 13725841. The next prime is 13725889. The reversal of 13725855 is 55852731.

13725855 is a `hidden beast` number, since 1 + 3 + 72 + 585 + 5 = 666.

It is not a de Polignac number, because 13725855 - 2⁷ = 13725727 is a prime.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 173706 + ... + 173784.

It is an arithmetic number, because the mean of its divisors is an integer number (305760).

Almost surely, 2^13725855 is an apocalyptic number.

13725855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13725855 is an abundant number, since it is smaller than the sum of its proper divisors (15627105).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13725855 is a wasteful number, since it uses less digits than its factorization.

13725855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 111 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 13725855 is about 3704.8421018985. The cubic root of 13725855 is about 239.4306818045.

It can be divided in two parts, 1372 and 5855, that added together give a palindrome (7227).

The spelling of 13725855 in words is "thirteen million, seven hundred twenty-five thousand, eight hundred fifty-five".