5643213253 has 2 divisors, whose sum is σ = 5643213254. Its totient is φ = 5643213252.

The previous prime is 5643213203. The next prime is 5643213259. The reversal of 5643213253 is 3523123465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5494812129 + 148401124 = 74127^2 + 12182^2 .

It is a cyclic number.

It is not a de Polignac number, because 5643213253 - 2²¹ = 5641116101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5643213259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821606626 + 2821606627.

It is an arithmetic number, because the mean of its divisors is an integer number (2821606627).

Almost surely, 2^5643213253 is an apocalyptic number.

It is an amenable number.

5643213253 is a deficient number, since it is larger than the sum of its proper divisors (1).

5643213253 is an equidigital number, since it uses as much as digits as its factorization.

5643213253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 34.

The square root of 5643213253 is about 75121.3235572963. The cubic root of 5643213253 is about 1780.3640686315.

The spelling of 5643213253 in words is "five billion, six hundred forty-three million, two hundred thirteen thousand, two hundred fifty-three".