6523203653 has 4 divisors (see below), whose sum is σ = 6748141740. Its totient is φ = 6298265568.

The previous prime is 6523203623. The next prime is 6523203667. The reversal of 6523203653 is 3563023256.

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 1907767684 + 4615435969 = 43678^2 + 67937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6523203653 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 (6523203623) 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, 112469000 + ... + 112469057.

It is an arithmetic number, because the mean of its divisors is an integer number (1687035435).

Almost surely, 2^6523203653 is an apocalyptic number.

It is an amenable number.

6523203653 is a deficient number, since it is larger than the sum of its proper divisors (224938087).

6523203653 is a wasteful number, since it uses less digits than its factorization.

6523203653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224938086.

The product of its (nonzero) digits is 97200, while the sum is 35.

The square root of 6523203653 is about 80766.3522328451. The cubic root of 6523203653 is about 1868.4736563622.

The spelling of 6523203653 in words is "six billion, five hundred twenty-three million, two hundred three thousand, six hundred fifty-three".