12254662505 has 4 divisors (see below), whose sum is σ = 14705595012. Its totient is φ = 9803730000.

The previous prime is 12254662489. The next prime is 12254662529. The reversal of 12254662505 is 50526645221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50526645221 = 13 ⋅3886665017.

It can be written as a sum of positive squares in 2 ways, for example, as 9048385129 + 3206277376 = 95123^2 + 56624^2 .

It is not a de Polignac number, because 12254662505 - 2⁴ = 12254662489 is a prime.

It is a super-2 number, since 2×12254662505² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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, 1225466246 + ... + 1225466255.

It is an arithmetic number, because the mean of its divisors is an integer number (3676398753).

Almost surely, 2^12254662505 is an apocalyptic number.

It is an amenable number.

12254662505 is a deficient number, since it is larger than the sum of its proper divisors (2450932507).

12254662505 is an equidigital number, since it uses as much as digits as its factorization.

12254662505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450932506.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 12254662505 in words is "twelve billion, two hundred fifty-four million, six hundred sixty-two thousand, five hundred five".