12090552 has 64 divisors (see below), whose sum is σ = 31399680. Its totient is φ = 3877632.

The previous prime is 12090541. The next prime is 12090557. The reversal of 12090552 is 25509021.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12090557) 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, 117333 + ... + 117435.

It is an arithmetic number, because the mean of its divisors is an integer number (490620).

Almost surely, 2^12090552 is an apocalyptic number.

12090552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12090552 is an abundant number, since it is smaller than the sum of its proper divisors (19309128).

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

12090552 is a wasteful number, since it uses less digits than its factorization.

12090552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 12090552 is about 3477.1471064653. The cubic root of 12090552 is about 229.5172736321.

Adding to 12090552 its reverse (25509021), we get a palindrome (37599573).

The spelling of 12090552 in words is "twelve million, ninety thousand, five hundred fifty-two".