63563551 has 2 divisors, whose sum is σ = 63563552. Its totient is φ = 63563550.

The previous prime is 63563543. The next prime is 63563567. The reversal of 63563551 is 15536536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63563551 - 2³ = 63563543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63563351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31781775 + 31781776.

It is an arithmetic number, because the mean of its divisors is an integer number (31781776).

Almost surely, 2^63563551 is an apocalyptic number.

63563551 is a deficient number, since it is larger than the sum of its proper divisors (1).

63563551 is an equidigital number, since it uses as much as digits as its factorization.

63563551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 34.

The square root of 63563551 is about 7972.6752724540. The cubic root of 63563551 is about 399.0886564593.

The spelling of 63563551 in words is "sixty-three million, five hundred sixty-three thousand, five hundred fifty-one".