13563056 has 40 divisors (see below), whose sum is σ = 28529424. Its totient is φ = 6209280.

The previous prime is 13563049. The next prime is 13563079. The reversal of 13563056 is 65036531.

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 7 ways as a sum of consecutive naturals, for example, 40811 + ... + 41141.

Almost surely, 2^13563056 is an apocalyptic number.

13563056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13563056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14264712).

13563056 is an abundant number, since it is smaller than the sum of its proper divisors (14966368).

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

13563056 is a wasteful number, since it uses less digits than its factorization.

13563056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 13563056 is about 3682.8054523692. The cubic root of 13563056 is about 238.4803049133.

Adding to 13563056 its reverse (65036531), we get a palindrome (78599587).

The spelling of 13563056 in words is "thirteen million, five hundred sixty-three thousand, fifty-six".