13809552 has 40 divisors (see below), whose sum is σ = 35902464. Its totient is φ = 4573824.

The previous prime is 13809533. The next prime is 13809553. The reversal of 13809552 is 25590831.

13809552 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13809553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7473 + ... + 9135.

Almost surely, 2^13809552 is an apocalyptic number.

13809552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13809552 is an abundant number, since it is smaller than the sum of its proper divisors (22092912).

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

13809552 is a wasteful number, since it uses less digits than its factorization.

13809552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 13809552 is about 3716.1205577860. The cubic root of 13809552 is about 239.9163597436.

The spelling of 13809552 in words is "thirteen million, eight hundred nine thousand, five hundred fifty-two".