12575004457 has 2 divisors, whose sum is σ = 12575004458. Its totient is φ = 12575004456.

The previous prime is 12575004433. The next prime is 12575004461. The reversal of 12575004457 is 75440057521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6716785936 + 5858218521 = 81956^2 + 76539^2 .

It is an emirp because it is prime and its reverse (75440057521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12575004457 is a prime.

It is not a weakly prime, because it can be changed into another prime (12575004857) 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 as a sum of consecutive naturals, namely, 6287502228 + 6287502229.

It is an arithmetic number, because the mean of its divisors is an integer number (6287502229).

Almost surely, 2^12575004457 is an apocalyptic number.

It is an amenable number.

12575004457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12575004457 is an equidigital number, since it uses as much as digits as its factorization.

12575004457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196000, while the sum is 40.

The spelling of 12575004457 in words is "twelve billion, five hundred seventy-five million, four thousand, four hundred fifty-seven".