13855601 has 8 divisors (see below), whose sum is σ = 14166504. Its totient is φ = 13547520.

The previous prime is 13855559. The next prime is 13855607. The reversal of 13855601 is 10655831.

It can be written as a sum of positive squares in 4 ways, for example, as 3996001 + 9859600 = 1999^2 + 3140^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13855601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13855607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11441 + ... + 12593.

It is an arithmetic number, because the mean of its divisors is an integer number (1770813).

Almost surely, 2^13855601 is an apocalyptic number.

It is an amenable number.

13855601 is a deficient number, since it is larger than the sum of its proper divisors (310903).

13855601 is a wasteful number, since it uses less digits than its factorization.

13855601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 13855601 is about 3722.3112443749. The cubic root of 13855601 is about 240.1827369854.

The spelling of 13855601 in words is "thirteen million, eight hundred fifty-five thousand, six hundred one".