12545563 has 2 divisors, whose sum is σ = 12545564. Its totient is φ = 12545562.

The previous prime is 12545527. The next prime is 12545581. The reversal of 12545563 is 36554521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12545563 - 2²¹ = 10448411 is a prime.

It is not a weakly prime, because it can be changed into another prime (12545593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272781 + 6272782.

It is an arithmetic number, because the mean of its divisors is an integer number (6272782).

Almost surely, 2^12545563 is an apocalyptic number.

12545563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12545563 is an equidigital number, since it uses as much as digits as its factorization.

12545563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18000, while the sum is 31.

The square root of 12545563 is about 3541.9716260862. The cubic root of 12545563 is about 232.3610793798.

The spelling of 12545563 in words is "twelve million, five hundred forty-five thousand, five hundred sixty-three".