12625478953 has 2 divisors, whose sum is σ = 12625478954. Its totient is φ = 12625478952.

The previous prime is 12625478933. The next prime is 12625478981. The reversal of 12625478953 is 35987452621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12612862249 + 12616704 = 112307^2 + 3552^2 .

It is an emirp because it is prime and its reverse (35987452621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12625478953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12625478953.

It is not a weakly prime, because it can be changed into another prime (12625478933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6312739476 + 6312739477.

It is an arithmetic number, because the mean of its divisors is an integer number (6312739477).

Almost surely, 2^12625478953 is an apocalyptic number.

It is an amenable number.

12625478953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12625478953 is an equidigital number, since it uses as much as digits as its factorization.

12625478953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 52.

The spelling of 12625478953 in words is "twelve billion, six hundred twenty-five million, four hundred seventy-eight thousand, nine hundred fifty-three".