12250155505 has 32 divisors (see below), whose sum is σ = 17022910464. Its totient is φ = 8289003456.

The previous prime is 12250155503. The next prime is 12250155509. The reversal of 12250155505 is 50555105221.

12250155505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12250155505 - 2¹ = 12250155503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12250155503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3086032 + ... + 3089998.

It is an arithmetic number, because the mean of its divisors is an integer number (531965952).

Almost surely, 2^12250155505 is an apocalyptic number.

It is an amenable number.

12250155505 is a deficient number, since it is larger than the sum of its proper divisors (4772754959).

12250155505 is a wasteful number, since it uses less digits than its factorization.

12250155505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5125.

The product of its (nonzero) digits is 12500, while the sum is 31.

The spelling of 12250155505 in words is "twelve billion, two hundred fifty million, one hundred fifty-five thousand, five hundred five".