12553675657 has 2 divisors, whose sum is σ = 12553675658. Its totient is φ = 12553675656.

The previous prime is 12553675639. The next prime is 12553675669. The reversal of 12553675657 is 75657635521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12552065296 + 1610361 = 112036^2 + 1269^2 .

It is a cyclic number.

It is not a de Polignac number, because 12553675657 - 2⁷ = 12553675529 is a prime.

It is a super-4 number, since 4×12553675657⁴ (a number of 41 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (12553675697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6276837828 + 6276837829.

It is an arithmetic number, because the mean of its divisors is an integer number (6276837829).

Almost surely, 2^12553675657 is an apocalyptic number.

It is an amenable number.

12553675657 is a deficient number, since it is larger than the sum of its proper divisors (1).

12553675657 is an equidigital number, since it uses as much as digits as its factorization.

12553675657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6615000, while the sum is 52.

The spelling of 12553675657 in words is "twelve billion, five hundred fifty-three million, six hundred seventy-five thousand, six hundred fifty-seven".