12045552 has 20 divisors (see below), whose sum is σ = 31117800. Its totient is φ = 4015168.

The previous prime is 12045521. The next prime is 12045589. The reversal of 12045552 is 25554021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125427 + ... + 125522.

It is an arithmetic number, because the mean of its divisors is an integer number (1555890).

Almost surely, 2^12045552 is an apocalyptic number.

12045552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12045552 is an abundant number, since it is smaller than the sum of its proper divisors (19072248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12045552 is a wasteful number, since it uses less digits than its factorization.

12045552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250960 (or 250954 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 12045552 is about 3470.6702522712. The cubic root of 12045552 is about 229.2321717462.

Adding to 12045552 its reverse (25554021), we get a palindrome (37599573).

The spelling of 12045552 in words is "twelve million, forty-five thousand, five hundred fifty-two".