12380256553 has 6 divisors (see below), whose sum is σ = 14401522986. Its totient is φ = 10611648432.

The previous prime is 12380256541. The next prime is 12380256587. The reversal of 12380256553 is 35565208321.

It can be written as a sum of positive squares in only one way, i.e., 6430756864 + 5949499689 = 80192^2 + 77133^2 .

It is not a de Polignac number, because 12380256553 - 2⁵ = 12380256521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12380256593) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 126329100 + ... + 126329197.

It is an arithmetic number, because the mean of its divisors is an integer number (2400253831).

Almost surely, 2^12380256553 is an apocalyptic number.

It is an amenable number.

12380256553 is a deficient number, since it is larger than the sum of its proper divisors (2021266433).

12380256553 is an equidigital number, since it uses as much as digits as its factorization.

12380256553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252658311 (or 252658304 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 12380256553 in words is "twelve billion, three hundred eighty million, two hundred fifty-six thousand, five hundred fifty-three".