63581359 has 2 divisors, whose sum is σ = 63581360. Its totient is φ = 63581358.

The previous prime is 63581347. The next prime is 63581363. The reversal of 63581359 is 95318536.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63581359 - 2²³ = 55192751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63581339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31790679 + 31790680.

It is an arithmetic number, because the mean of its divisors is an integer number (31790680).

Almost surely, 2^63581359 is an apocalyptic number.

63581359 is a deficient number, since it is larger than the sum of its proper divisors (1).

63581359 is an equidigital number, since it uses as much as digits as its factorization.

63581359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 40.

The square root of 63581359 is about 7973.7920088249. The cubic root of 63581359 is about 399.1259226131.

The spelling of 63581359 in words is "sixty-three million, five hundred eighty-one thousand, three hundred fifty-nine".