63500213 has 4 divisors (see below), whose sum is σ = 72571680. Its totient is φ = 54428748.

The previous prime is 63500209. The next prime is 63500233. The reversal of 63500213 is 31200536.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63500213 - 2² = 63500209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63500233) 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 in 3 ways as a sum of consecutive naturals, for example, 4535723 + ... + 4535736.

It is an arithmetic number, because the mean of its divisors is an integer number (18142920).

Almost surely, 2^63500213 is an apocalyptic number.

It is an amenable number.

63500213 is a deficient number, since it is larger than the sum of its proper divisors (9071467).

63500213 is an equidigital number, since it uses as much as digits as its factorization.

63500213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9071466.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 63500213 is about 7968.7020900521. The cubic root of 63500213 is about 398.9560549001.

Adding to 63500213 its reverse (31200536), we get a palindrome (94700749).

The spelling of 63500213 in words is "sixty-three million, five hundred thousand, two hundred thirteen".