12042550 has 48 divisors (see below), whose sum is σ = 24498432. Its totient is φ = 4377600.

The previous prime is 12042517. The next prime is 12042551. The reversal of 12042550 is 5524021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042551) 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 23 ways as a sum of consecutive naturals, for example, 62955 + ... + 63145.

It is an arithmetic number, because the mean of its divisors is an integer number (510384).

Almost surely, 2^12042550 is an apocalyptic number.

12042550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12042550 is an abundant number, since it is smaller than the sum of its proper divisors (12455882).

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

12042550 is a wasteful number, since it uses less digits than its factorization.

12042550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 12042550 is about 3470.2377440170. The cubic root of 12042550 is about 229.2131270356.

Adding to 12042550 its reverse (5524021), we get a palindrome (17566571).

The spelling of 12042550 in words is "twelve million, forty-two thousand, five hundred fifty".