32563213 has 4 divisors (see below), whose sum is σ = 32770780. Its totient is φ = 32355648.

The previous prime is 32563199. The next prime is 32563217. The reversal of 32563213 is 31236523.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3694084 + 28869129 = 1922^2 + 5373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32563213 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 (32563217) 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 in 3 ways as a sum of consecutive naturals, for example, 103548 + ... + 103861.

It is an arithmetic number, because the mean of its divisors is an integer number (8192695).

Almost surely, 2^32563213 is an apocalyptic number.

It is an amenable number.

32563213 is a deficient number, since it is larger than the sum of its proper divisors (207567).

32563213 is a wasteful number, since it uses less digits than its factorization.

32563213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207566.

The product of its digits is 3240, while the sum is 25.

The square root of 32563213 is about 5706.4185791090. The cubic root of 32563213 is about 319.3319820967.

Adding to 32563213 its reverse (31236523), we get a palindrome (63799736).

The spelling of 32563213 in words is "thirty-two million, five hundred sixty-three thousand, two hundred thirteen".