8283642557 has 2 divisors, whose sum is σ = 8283642558. Its totient is φ = 8283642556.

The previous prime is 8283642541. The next prime is 8283642599. The reversal of 8283642557 is 7552463828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7887393721 + 396248836 = 88811^2 + 19906^2 .

It is a cyclic number.

It is not a de Polignac number, because 8283642557 - 2⁴ = 8283642541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8283647557) 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, 4141821278 + 4141821279.

It is an arithmetic number, because the mean of its divisors is an integer number (4141821279).

Almost surely, 2^8283642557 is an apocalyptic number.

It is an amenable number.

8283642557 is a deficient number, since it is larger than the sum of its proper divisors (1).

8283642557 is an equidigital number, since it uses as much as digits as its factorization.

8283642557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3225600, while the sum is 50.

The square root of 8283642557 is about 91014.5183858048. The cubic root of 8283642557 is about 2023.3629044263.

The spelling of 8283642557 in words is "eight billion, two hundred eighty-three million, six hundred forty-two thousand, five hundred fifty-seven".