12442432550 has 12 divisors (see below), whose sum is σ = 23142924636. Its totient is φ = 4976973000.

The previous prime is 12442432537. The next prime is 12442432553. The reversal of 12442432550 is 5523424421.

It is a super-2 number, since 2×12442432550² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442432553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124424276 + ... + 124424375.

It is an arithmetic number, because the mean of its divisors is an integer number (1928577053).

Almost surely, 2^12442432550 is an apocalyptic number.

12442432550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12442432550 is a deficient number, since it is larger than the sum of its proper divisors (10700492086).

12442432550 is a wasteful number, since it uses less digits than its factorization.

12442432550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248848663 (or 248848658 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 12442432550 its reverse (5523424421), we get a palindrome (17965856971).

The spelling of 12442432550 in words is "twelve billion, four hundred forty-two million, four hundred thirty-two thousand, five hundred fifty".