13569552 has 80 divisors (see below), whose sum is σ = 39461760. Its totient is φ = 4464000.

The previous prime is 13569547. The next prime is 13569559. The reversal of 13569552 is 25596531.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13569559) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43477 + ... + 43787.

It is an arithmetic number, because the mean of its divisors is an integer number (493272).

Almost surely, 2^13569552 is an apocalyptic number.

13569552 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 13569552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19730880).

13569552 is an abundant number, since it is smaller than the sum of its proper divisors (25892208).

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

13569552 is a wasteful number, since it uses less digits than its factorization.

13569552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 417 counting only the distinct ones).

The product of its digits is 40500, while the sum is 36.

The square root of 13569552 is about 3683.6872831444. The cubic root of 13569552 is about 238.5183720668.

The spelling of 13569552 in words is "thirteen million, five hundred sixty-nine thousand, five hundred fifty-two".