13599552 has 56 divisors (see below), whose sum is σ = 36267136. Its totient is φ = 4497408.

The previous prime is 13599539. The next prime is 13599581. The reversal of 13599552 is 25599531.

It is a self number, because there is not a number n which added to its sum of digits gives 13599552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36873 + ... + 37239.

Almost surely, 2^13599552 is an apocalyptic number.

13599552 is a gapful number since it is divisible by the number (12) 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 13599552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18133568).

13599552 is an abundant number, since it is smaller than the sum of its proper divisors (22667584).

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

13599552 is a wasteful number, since it uses less digits than its factorization.

13599552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 565 counting only the distinct ones).

The product of its digits is 60750, while the sum is 39.

The square root of 13599552 is about 3687.7570418887. The cubic root of 13599552 is about 238.6940173740.

It can be divided in two parts, 135 and 99552, that multiplied together give a triangular number (13439520 = T₅₁₈₄).

The spelling of 13599552 in words is "thirteen million, five hundred ninety-nine thousand, five hundred fifty-two".