12250054512506 has 8 divisors (see below), whose sum is σ = 18375380187444. Its totient is φ = 6124927783360.

The previous prime is 12250054512499. The next prime is 12250054512517. The reversal of 12250054512506 is 60521545005221.

It can be written as a sum of positive squares in 2 ways, for example, as 11085470365225 + 1164584147281 = 3329485^2 + 1079159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12250054512506² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12250054512506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49582415 + ... + 49828866.

Almost surely, 2^{12250054512506} is an apocalyptic number.

12250054512506 is a deficient number, since it is larger than the sum of its proper divisors (6125325674938).

12250054512506 is an equidigital number, since it uses as much as digits as its factorization.

12250054512506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99472896.

The product of its (nonzero) digits is 120000, while the sum is 38.

Adding to 12250054512506 its reverse (60521545005221), we get a palindrome (72771599517727).

The spelling of 12250054512506 in words is "twelve trillion, two hundred fifty billion, fifty-four million, five hundred twelve thousand, five hundred six".