12553328 has 10 divisors (see below), whose sum is σ = 24322104. Its totient is φ = 6276656.

The previous prime is 12553313. The next prime is 12553379. The reversal of 12553328 is 82335521.

It is a self number, because there is not a number n which added to its sum of digits gives 12553328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392276 + ... + 392307.

Almost surely, 2^12553328 is an apocalyptic number.

It is an amenable number.

12553328 is a deficient number, since it is larger than the sum of its proper divisors (11768776).

12553328 is an equidigital number, since it uses as much as digits as its factorization.

12553328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784591 (or 784585 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 12553328 is about 3543.0675974359. The cubic root of 12553328 is about 232.4090089854.

Adding to 12553328 its reverse (82335521), we get a palindrome (94888849).

The spelling of 12553328 in words is "twelve million, five hundred fifty-three thousand, three hundred twenty-eight".