63523399 has 2 divisors, whose sum is σ = 63523400. Its totient is φ = 63523398.

The previous prime is 63523393. The next prime is 63523423. The reversal of 63523399 is 99332536.

63523399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63523399 - 2⁹ = 63522887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63523393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31761699 + 31761700.

It is an arithmetic number, because the mean of its divisors is an integer number (31761700).

Almost surely, 2^63523399 is an apocalyptic number.

63523399 is a deficient number, since it is larger than the sum of its proper divisors (1).

63523399 is an equidigital number, since it uses as much as digits as its factorization.

63523399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131220, while the sum is 40.

The square root of 63523399 is about 7970.1567738659. The cubic root of 63523399 is about 399.0046062830.

The spelling of 63523399 in words is "sixty-three million, five hundred twenty-three thousand, three hundred ninety-nine".