12326553 has 8 divisors (see below), whose sum is σ = 18261600. Its totient is φ = 8217684.

The previous prime is 12326543. The next prime is 12326557. The reversal of 12326553 is 35562321.

12326553 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 655 + 3 = 666.

12326553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12326553 - 2⁵ = 12326521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 456539 = 12326553 / (1 + 2 + 3 + 2 + 6 + 5 + 5 + 3).

It is not an unprimeable number, because it can be changed into a prime (12326557) 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, 228243 + ... + 228296.

It is an arithmetic number, because the mean of its divisors is an integer number (2282700).

Almost surely, 2^12326553 is an apocalyptic number.

It is an amenable number.

12326553 is a deficient number, since it is larger than the sum of its proper divisors (5935047).

12326553 is an equidigital number, since it uses as much as digits as its factorization.

12326553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456548 (or 456542 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 12326553 is about 3510.9191104325. The cubic root of 12326553 is about 231.0010119706.

Adding to 12326553 its reverse (35562321), we get a palindrome (47888874).

The spelling of 12326553 in words is "twelve million, three hundred twenty-six thousand, five hundred fifty-three".