12655252457 has 2 divisors, whose sum is σ = 12655252458. Its totient is φ = 12655252456.

The previous prime is 12655252399. The next prime is 12655252459. The reversal of 12655252457 is 75425255621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9053332201 + 3601920256 = 95149^2 + 60016^2 .

It is a cyclic number.

It is not a de Polignac number, because 12655252457 - 2⁸ = 12655252201 is a prime.

Together with 12655252459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12655252459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6327626228 + 6327626229.

It is an arithmetic number, because the mean of its divisors is an integer number (6327626229).

Almost surely, 2^12655252457 is an apocalyptic number.

It is an amenable number.

12655252457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12655252457 is an equidigital number, since it uses as much as digits as its factorization.

12655252457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840000, while the sum is 44.

The spelling of 12655252457 in words is "twelve billion, six hundred fifty-five million, two hundred fifty-two thousand, four hundred fifty-seven".