64563203 has 2 divisors, whose sum is σ = 64563204. Its totient is φ = 64563202.

The previous prime is 64563199. The next prime is 64563209. The reversal of 64563203 is 30236546.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64563203 - 2² = 64563199 is a prime.

It is not a weakly prime, because it can be changed into another prime (64563209) 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, 32281601 + 32281602.

It is an arithmetic number, because the mean of its divisors is an integer number (32281602).

Almost surely, 2^64563203 is an apocalyptic number.

64563203 is a deficient number, since it is larger than the sum of its proper divisors (1).

64563203 is an equidigital number, since it uses as much as digits as its factorization.

64563203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 64563203 is about 8035.1230855538. The cubic root of 64563203 is about 401.1699144975.

Adding to 64563203 its reverse (30236546), we get a palindrome (94799749).

It can be divided in two parts, 645 and 63203, that multiplied together give a triangular number (40765935 = T₉₀₂₉).

The spelling of 64563203 in words is "sixty-four million, five hundred sixty-three thousand, two hundred three".