12027553 has 12 divisors (see below), whose sum is σ = 12729468. Its totient is φ = 11352960.

The previous prime is 12027541. The next prime is 12027557. The reversal of 12027553 is 35572021.

12027553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 529 + 12027024 = 23^2 + 3468^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12027553 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12027557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164725 + ... + 164797.

It is an arithmetic number, because the mean of its divisors is an integer number (1060789).

Almost surely, 2^12027553 is an apocalyptic number.

It is an amenable number.

12027553 is a deficient number, since it is larger than the sum of its proper divisors (701915).

12027553 is an frugal number, since it uses more digits than its factorization.

12027553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 12027553 is about 3468.0762679042. The cubic root of 12027553 is about 229.1179385248.

Adding to 12027553 its reverse (35572021), we get a palindrome (47599574).

The spelling of 12027553 in words is "twelve million, twenty-seven thousand, five hundred fifty-three".