26487563 has 2 divisors, whose sum is σ = 26487564. Its totient is φ = 26487562.

The previous prime is 26487521. The next prime is 26487607. The reversal of 26487563 is 36578462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26487563 - 2²² = 22293259 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26487563.

It is not a weakly prime, because it can be changed into another prime (26487163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13243781 + 13243782.

It is an arithmetic number, because the mean of its divisors is an integer number (13243782).

Almost surely, 2^26487563 is an apocalyptic number.

26487563 is a deficient number, since it is larger than the sum of its proper divisors (1).

26487563 is an equidigital number, since it uses as much as digits as its factorization.

26487563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 26487563 is about 5146.6069404997. The cubic root of 26487563 is about 298.0899500244.

The spelling of 26487563 in words is "twenty-six million, four hundred eighty-seven thousand, five hundred sixty-three".