12553427 has 4 divisors (see below), whose sum is σ = 12580776. Its totient is φ = 12526080.

The previous prime is 12553417. The next prime is 12553451. The reversal of 12553427 is 72435521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12553427 - 2¹⁰ = 12552403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12553427.

It is not an unprimeable number, because it can be changed into a prime (12553417) 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, 12974 + ... + 13907.

It is an arithmetic number, because the mean of its divisors is an integer number (3145194).

Almost surely, 2^12553427 is an apocalyptic number.

12553427 is a deficient number, since it is larger than the sum of its proper divisors (27349).

12553427 is an equidigital number, since it uses as much as digits as its factorization.

12553427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27348.

The product of its digits is 8400, while the sum is 29.

The square root of 12553427 is about 3543.0815683526. The cubic root of 12553427 is about 232.4096199371.

Adding to 12553427 its reverse (72435521), we get a palindrome (84988948).

The spelling of 12553427 in words is "twelve million, five hundred fifty-three thousand, four hundred twenty-seven".