5185218653 has 2 divisors, whose sum is σ = 5185218654. Its totient is φ = 5185218652.

The previous prime is 5185218631. The next prime is 5185218659. The reversal of 5185218653 is 3568125815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3864114244 + 1321104409 = 62162^2 + 36347^2 .

It is a cyclic number.

It is not a de Polignac number, because 5185218653 - 2¹⁸ = 5184956509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5185218659) 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, 2592609326 + 2592609327.

It is an arithmetic number, because the mean of its divisors is an integer number (2592609327).

Almost surely, 2^5185218653 is an apocalyptic number.

It is an amenable number.

5185218653 is a deficient number, since it is larger than the sum of its proper divisors (1).

5185218653 is an equidigital number, since it uses as much as digits as its factorization.

5185218653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 44.

The square root of 5185218653 is about 72008.4623707520. The cubic root of 5185218653 is about 1730.8350911635.

The spelling of 5185218653 in words is "five billion, one hundred eighty-five million, two hundred eighteen thousand, six hundred fifty-three".