12352554421225 has 6 divisors (see below), whose sum is σ = 15317167482350. Its totient is φ = 9882043536960.

The previous prime is 12352554421187. The next prime is 12352554421231. The reversal of 12352554421225 is 52212445525321.

It can be written as a sum of positive squares in 3 ways, for example, as 2989174739929 + 9363379681296 = 1728923^2 + 3059964^2 .

It is not a de Polignac number, because 12352554421225 - 2³⁹ = 11802798607337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247051088400 + ... + 247051088449.

Almost surely, 2^{12352554421225} is an apocalyptic number.

It is an amenable number.

12352554421225 is a deficient number, since it is larger than the sum of its proper divisors (2964613061125).

12352554421225 is an equidigital number, since it uses as much as digits as its factorization.

12352554421225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494102176859 (or 494102176854 counting only the distinct ones).

The product of its digits is 960000, while the sum is 43.

Adding to 12352554421225 its reverse (52212445525321), we get a palindrome (64564999946546).

The spelling of 12352554421225 in words is "twelve trillion, three hundred fifty-two billion, five hundred fifty-four million, four hundred twenty-one thousand, two hundred twenty-five".