12552420 has 48 divisors (see below), whose sum is σ = 35437248. Its totient is φ = 3319680.

The previous prime is 12552403. The next prime is 12552433. The reversal of 12552420 is 2425521.

It is a happy number.

It is an unprimeable number.

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, 7062 + ... + 8658.

It is an arithmetic number, because the mean of its divisors is an integer number (738276).

Almost surely, 2^12552420 is an apocalyptic number.

12552420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12552420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17718624).

12552420 is an abundant number, since it is smaller than the sum of its proper divisors (22884828).

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

12552420 is a wasteful number, since it uses less digits than its factorization.

12552420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740 (or 1738 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 12552420 is about 3542.9394575691. The cubic root of 12552420 is about 232.4034053593.

Adding to 12552420 its reverse (2425521), we get a palindrome (14977941).

The spelling of 12552420 in words is "twelve million, five hundred fifty-two thousand, four hundred twenty".