12342452550 has 24 divisors (see below), whose sum is σ = 30609282696. Its totient is φ = 3291320640.

The previous prime is 12342452543. The next prime is 12342452567. The reversal of 12342452550 is 5525424321.

It is a happy number.

It is a super-2 number, since 2×12342452550² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41141359 + ... + 41141658.

It is an arithmetic number, because the mean of its divisors is an integer number (1275386779).

Almost surely, 2^12342452550 is an apocalyptic number.

12342452550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12342452550 is an abundant number, since it is smaller than the sum of its proper divisors (18266830146).

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

12342452550 is a wasteful number, since it uses less digits than its factorization.

12342452550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82283032 (or 82283027 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

Adding to 12342452550 its reverse (5525424321), we get a palindrome (17867876871).

The spelling of 12342452550 in words is "twelve billion, three hundred forty-two million, four hundred fifty-two thousand, five hundred fifty".