13553904 has 160 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 3419136.

The previous prime is 13553867. The next prime is 13553909. The reversal of 13553904 is 40935531.

13553904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126619 + ... + 126725.

It is an arithmetic number, because the mean of its divisors is an integer number (281232).

Almost surely, 2^13553904 is an apocalyptic number.

13553904 is a gapful number since it is divisible by the number (14) 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 13553904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498560).

13553904 is an abundant number, since it is smaller than the sum of its proper divisors (31443216).

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

13553904 is a wasteful number, since it uses less digits than its factorization.

13553904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 13553904 is about 3681.5627116756. The cubic root of 13553904 is about 238.4266527264.

The spelling of 13553904 in words is "thirteen million, five hundred fifty-three thousand, nine hundred four".