12563504533 has 2 divisors, whose sum is σ = 12563504534. Its totient is φ = 12563504532.

The previous prime is 12563504461. The next prime is 12563504579. The reversal of 12563504533 is 33540536521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9018731089 + 3544773444 = 94967^2 + 59538^2 .

It is a cyclic number.

It is not a de Polignac number, because 12563504533 - 2¹⁷ = 12563373461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12563504492 and 12563504501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12563504333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6281752266 + 6281752267.

It is an arithmetic number, because the mean of its divisors is an integer number (6281752267).

Almost surely, 2^12563504533 is an apocalyptic number.

It is an amenable number.

12563504533 is a deficient number, since it is larger than the sum of its proper divisors (1).

12563504533 is an equidigital number, since it uses as much as digits as its factorization.

12563504533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 12563504533 in words is "twelve billion, five hundred sixty-three million, five hundred four thousand, five hundred thirty-three".