13725585 has 32 divisors (see below), whose sum is σ = 24554880. Its totient is φ = 7274304.

The previous prime is 13725559. The next prime is 13725587. The reversal of 13725585 is 58552731.

13725585 is a `hidden beast` number, since 1 + 3 + 72 + 5 + 585 = 666.

It is not a de Polignac number, because 13725585 - 2⁸ = 13725329 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13725587) 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 31 ways as a sum of consecutive naturals, for example, 39382 + ... + 39728.

It is an arithmetic number, because the mean of its divisors is an integer number (767340).

Almost surely, 2^13725585 is an apocalyptic number.

13725585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13725585 is a deficient number, since it is larger than the sum of its proper divisors (10829295).

13725585 is a wasteful number, since it uses less digits than its factorization.

13725585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 648 counting only the distinct ones).

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

The square root of 13725585 is about 3704.8056629194. The cubic root of 13725585 is about 239.4291118548.

The spelling of 13725585 in words is "thirteen million, seven hundred twenty-five thousand, five hundred eighty-five".