13551560 has 64 divisors (see below), whose sum is σ = 35035200. Its totient is φ = 4665600.

The previous prime is 13551529. The next prime is 13551563. The reversal of 13551560 is 6515531.

It is not an unprimeable number, because it can be changed into a prime (13551563) 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 15 ways as a sum of consecutive naturals, for example, 7550 + ... + 9170.

It is an arithmetic number, because the mean of its divisors is an integer number (547425).

Almost surely, 2^13551560 is an apocalyptic number.

13551560 is a gapful number since it is divisible by the number (10) 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 13551560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17517600).

13551560 is an abundant number, since it is smaller than the sum of its proper divisors (21483640).

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

13551560 is a wasteful number, since it uses less digits than its factorization.

13551560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1658 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 13551560 is about 3681.2443548344. The cubic root of 13551560 is about 238.4129075035.

The spelling of 13551560 in words is "thirteen million, five hundred fifty-one thousand, five hundred sixty".