12455224513 has 2 divisors, whose sum is σ = 12455224514. Its totient is φ = 12455224512.

The previous prime is 12455224511. The next prime is 12455224531. The reversal of 12455224513 is 31542255421.

It is a happy number.

Together with next prime (12455224531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10697351184 + 1757873329 = 103428^2 + 41927^2 .

It is a cyclic number.

It is not a de Polignac number, because 12455224513 - 2¹ = 12455224511 is a prime.

It is a super-4 number, since 4×12455224513⁴ (a number of 41 digits) contains 4444 as substring.

Together with 12455224511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12455224511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227612256 + 6227612257.

It is an arithmetic number, because the mean of its divisors is an integer number (6227612257).

Almost surely, 2^12455224513 is an apocalyptic number.

It is an amenable number.

12455224513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12455224513 is an equidigital number, since it uses as much as digits as its factorization.

12455224513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48000, while the sum is 34.

Adding to 12455224513 its reverse (31542255421), we get a palindrome (43997479934).

The spelling of 12455224513 in words is "twelve billion, four hundred fifty-five million, two hundred twenty-four thousand, five hundred thirteen".