12423553 has 4 divisors (see below), whose sum is σ = 12479488. Its totient is φ = 12367620.

The previous prime is 12423539. The next prime is 12423563. The reversal of 12423553 is 35532421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12423553 - 2²¹ = 10326401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12423563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27633 + ... + 28078.

It is an arithmetic number, because the mean of its divisors is an integer number (3119872).

Almost surely, 2^12423553 is an apocalyptic number.

It is an amenable number.

12423553 is a deficient number, since it is larger than the sum of its proper divisors (55935).

12423553 is an equidigital number, since it uses as much as digits as its factorization.

12423553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55934.

The product of its digits is 3600, while the sum is 25.

The square root of 12423553 is about 3524.7060870376. The cubic root of 12423553 is about 231.6053598508.

Adding to 12423553 its reverse (35532421), we get a palindrome (47955974).

The spelling of 12423553 in words is "twelve million, four hundred twenty-three thousand, five hundred fifty-three".