12522153257 has 2 divisors, whose sum is σ = 12522153258. Its totient is φ = 12522153256.

The previous prime is 12522153229. The next prime is 12522153269. The reversal of 12522153257 is 75235122521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7613609536 + 4908543721 = 87256^2 + 70061^2 .

It is a cyclic number.

It is not a de Polignac number, because 12522153257 - 2¹⁰ = 12522152233 is a prime.

It is not a weakly prime, because it can be changed into another prime (12522353257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6261076628 + 6261076629.

It is an arithmetic number, because the mean of its divisors is an integer number (6261076629).

Almost surely, 2^12522153257 is an apocalyptic number.

It is an amenable number.

12522153257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12522153257 is an equidigital number, since it uses as much as digits as its factorization.

12522153257 is an evil number, because the sum of its binary digits is even.

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

Adding to 12522153257 its reverse (75235122521), we get a palindrome (87757275778).

The spelling of 12522153257 in words is "twelve billion, five hundred twenty-two million, one hundred fifty-three thousand, two hundred fifty-seven".