8204021053 has 2 divisors, whose sum is σ = 8204021054. Its totient is φ = 8204021052.

The previous prime is 8204021003. The next prime is 8204021083. The reversal of 8204021053 is 3501204028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5481477369 + 2722543684 = 74037^2 + 52178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8204021053 is a prime.

It is a super-2 number, since 2×8204021053² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8204021003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4102010526 + 4102010527.

It is an arithmetic number, because the mean of its divisors is an integer number (4102010527).

Almost surely, 2^8204021053 is an apocalyptic number.

It is an amenable number.

8204021053 is a deficient number, since it is larger than the sum of its proper divisors (1).

8204021053 is an equidigital number, since it uses as much as digits as its factorization.

8204021053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 8204021053 is about 90576.0512111231. The cubic root of 8204021053 is about 2016.8592381309.

The spelling of 8204021053 in words is "eight billion, two hundred four million, twenty-one thousand, fifty-three".