63954523 has 2 divisors, whose sum is σ = 63954524. Its totient is φ = 63954522.

The previous prime is 63954511. The next prime is 63954557. The reversal of 63954523 is 32545936.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63954523 is a prime.

It is not a weakly prime, because it can be changed into another prime (63954503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31977261 + 31977262.

It is an arithmetic number, because the mean of its divisors is an integer number (31977262).

Almost surely, 2^63954523 is an apocalyptic number.

63954523 is a deficient number, since it is larger than the sum of its proper divisors (1).

63954523 is an equidigital number, since it uses as much as digits as its factorization.

63954523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 37.

The square root of 63954523 is about 7997.1571823993. The cubic root of 63954523 is about 399.9052338002.

The spelling of 63954523 in words is "sixty-three million, nine hundred fifty-four thousand, five hundred twenty-three".