12404553 has 16 divisors (see below), whose sum is σ = 19117440. Its totient is φ = 7007616.

The previous prime is 12404537. The next prime is 12404563. The reversal of 12404553 is 35540421.

It is not a de Polignac number, because 12404553 - 2⁴ = 12404537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12404563) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1450 + ... + 5187.

It is an arithmetic number, because the mean of its divisors is an integer number (1194840).

Almost surely, 2^12404553 is an apocalyptic number.

It is an amenable number.

12404553 is a deficient number, since it is larger than the sum of its proper divisors (6712887).

12404553 is an equidigital number, since it uses as much as digits as its factorization.

12404553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 12404553 is about 3522.0097955571. The cubic root of 12404553 is about 231.4872308139.

Adding to 12404553 its reverse (35540421), we get a palindrome (47944974).

The spelling of 12404553 in words is "twelve million, four hundred four thousand, five hundred fifty-three".