13824553 has 4 divisors (see below), whose sum is σ = 14637780. Its totient is φ = 13011328.

The previous prime is 13824529. The next prime is 13824583. The reversal of 13824553 is 35542831.

13824553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11042329 + 2782224 = 3323^2 + 1668^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13824553 is a prime.

It is a super-2 number, since 2×13824553² = 382236531299618, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13824583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406588 + ... + 406621.

It is an arithmetic number, because the mean of its divisors is an integer number (3659445).

Almost surely, 2^13824553 is an apocalyptic number.

It is an amenable number.

13824553 is a deficient number, since it is larger than the sum of its proper divisors (813227).

13824553 is an equidigital number, since it uses as much as digits as its factorization.

13824553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813226.

The product of its digits is 14400, while the sum is 31.

The square root of 13824553 is about 3718.1383782748. The cubic root of 13824553 is about 240.0032001888.

The spelling of 13824553 in words is "thirteen million, eight hundred twenty-four thousand, five hundred fifty-three".