13555528 has 64 divisors (see below), whose sum is σ = 31881600. Its totient is φ = 5268480.

The previous prime is 13555523. The next prime is 13555541. The reversal of 13555528 is 82555531.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 13555493 and 13555502.

It is not an unprimeable number, because it can be changed into a prime (13555523) 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, 27363 + ... + 27853.

It is an arithmetic number, because the mean of its divisors is an integer number (498150).

Almost surely, 2^13555528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13555528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15940800).

13555528 is an abundant number, since it is smaller than the sum of its proper divisors (18326072).

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

13555528 is a wasteful number, since it uses less digits than its factorization.

13555528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 546 counting only the distinct ones).

The product of its digits is 30000, while the sum is 34.

The square root of 13555528 is about 3681.7832635830. The cubic root of 13555528 is about 238.4361749378.

The spelling of 13555528 in words is "thirteen million, five hundred fifty-five thousand, five hundred twenty-eight".