12533553251 has 2 divisors, whose sum is σ = 12533553252. Its totient is φ = 12533553250.

The previous prime is 12533553209. The next prime is 12533553259. The reversal of 12533553251 is 15235533521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12533553251 - 2²⁶ = 12466444387 is a prime.

It is not a weakly prime, because it can be changed into another prime (12533553259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6266776625 + 6266776626.

It is an arithmetic number, because the mean of its divisors is an integer number (6266776626).

Almost surely, 2^12533553251 is an apocalyptic number.

12533553251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12533553251 is an equidigital number, since it uses as much as digits as its factorization.

12533553251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67500, while the sum is 35.

The spelling of 12533553251 in words is "twelve billion, five hundred thirty-three million, five hundred fifty-three thousand, two hundred fifty-one".