13556241 has 12 divisors (see below), whose sum is σ = 20306832. Its totient is φ = 9037332.

The previous prime is 13556237. The next prime is 13556251. The reversal of 13556241 is 14265531.

13556241 is a `hidden beast` number, since 1 + 35 + 5 + 624 + 1 = 666.

13556241 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 13556241 - 2² = 13556237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13556201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27651 + ... + 28136.

It is an arithmetic number, because the mean of its divisors is an integer number (1692236).

Almost surely, 2^13556241 is an apocalyptic number.

It is an amenable number.

13556241 is a deficient number, since it is larger than the sum of its proper divisors (6750591).

13556241 is an frugal number, since it uses more digits than its factorization.

13556241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55802 (or 55790 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 13556241 is about 3681.8800903886. The cubic root of 13556241 is about 238.4403553237.

The spelling of 13556241 in words is "thirteen million, five hundred fifty-six thousand, two hundred forty-one".