6853941553 has 2 divisors, whose sum is σ = 6853941554. Its totient is φ = 6853941552.

The previous prime is 6853941469. The next prime is 6853941581. The reversal of 6853941553 is 3551493586.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6373148224 + 480793329 = 79832^2 + 21927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6853941553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6853941497 and 6853941506.

It is not a weakly prime, because it can be changed into another prime (6853941253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3426970776 + 3426970777.

It is an arithmetic number, because the mean of its divisors is an integer number (3426970777).

Almost surely, 2^6853941553 is an apocalyptic number.

It is an amenable number.

6853941553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6853941553 is an equidigital number, since it uses as much as digits as its factorization.

6853941553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 49.

The square root of 6853941553 is about 82788.5351543316. The cubic root of 6853941553 is about 1899.5328078459.

The spelling of 6853941553 in words is "six billion, eight hundred fifty-three million, nine hundred forty-one thousand, five hundred fifty-three".