12605450057 has 2 divisors, whose sum is σ = 12605450058. Its totient is φ = 12605450056.

The previous prime is 12605450027. The next prime is 12605450083. The reversal of 12605450057 is 75005450621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6396640441 + 6208809616 = 79979^2 + 78796^2 .

It is a cyclic number.

It is not a de Polignac number, because 12605450057 - 2¹² = 12605445961 is a prime.

It is a super-2 number, since 2×12605450057² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12605449999 and 12605450026.

It is not a weakly prime, because it can be changed into another prime (12605450027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302725028 + 6302725029.

It is an arithmetic number, because the mean of its divisors is an integer number (6302725029).

Almost surely, 2^12605450057 is an apocalyptic number.

It is an amenable number.

12605450057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12605450057 is an equidigital number, since it uses as much as digits as its factorization.

12605450057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 35.

The spelling of 12605450057 in words is "twelve billion, six hundred five million, four hundred fifty thousand, fifty-seven".