12455025439 has 2 divisors, whose sum is σ = 12455025440. Its totient is φ = 12455025438.

The previous prime is 12455025419. The next prime is 12455025461. The reversal of 12455025439 is 93452055421.

It is a weak prime.

It is an emirp because it is prime and its reverse (93452055421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12455025439 - 2¹⁹ = 12454501151 is a prime.

It is a super-2 number, since 2×12455025439² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12455025419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6227512719 + 6227512720.

It is an arithmetic number, because the mean of its divisors is an integer number (6227512720).

Almost surely, 2^12455025439 is an apocalyptic number.

12455025439 is a deficient number, since it is larger than the sum of its proper divisors (1).

12455025439 is an equidigital number, since it uses as much as digits as its factorization.

12455025439 is an evil number, because the sum of its binary digits is even.

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

The spelling of 12455025439 in words is "twelve billion, four hundred fifty-five million, twenty-five thousand, four hundred thirty-nine".