13664552 has 32 divisors (see below), whose sum is σ = 28857600. Its totient is φ = 6009600.

The previous prime is 13664543. The next prime is 13664569. The reversal of 13664552 is 25546631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224 + ... + 5232.

It is an arithmetic number, because the mean of its divisors is an integer number (901800).

Almost surely, 2^13664552 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 13664552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14428800).

13664552 is an abundant number, since it is smaller than the sum of its proper divisors (15193048).

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

13664552 is a wasteful number, since it uses less digits than its factorization.

13664552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057 (or 5053 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 13664552 is about 3696.5594814638. The cubic root of 13664552 is about 239.0736979703.

The spelling of 13664552 in words is "thirteen million, six hundred sixty-four thousand, five hundred fifty-two".