13555280 has 80 divisors (see below), whose sum is σ = 33747840. Its totient is φ = 5051904.

The previous prime is 13555279. The next prime is 13555301. The reversal of 13555280 is 8255531.

13555280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97451 + ... + 97589.

It is an arithmetic number, because the mean of its divisors is an integer number (421848).

Almost surely, 2^13555280 is an apocalyptic number.

13555280 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 13555280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16873920).

13555280 is an abundant number, since it is smaller than the sum of its proper divisors (20192560).

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

13555280 is a wasteful number, since it uses less digits than its factorization.

13555280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 13555280 is about 3681.7495840972. The cubic root of 13555280 is about 238.4347208562.

The spelling of 13555280 in words is "thirteen million, five hundred fifty-five thousand, two hundred eighty".