5520636857 has 2 divisors, whose sum is σ = 5520636858. Its totient is φ = 5520636856.

The previous prime is 5520636817. The next prime is 5520636907. The reversal of 5520636857 is 7586360255.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3177689641 + 2342947216 = 56371^2 + 48404^2 .

It is a cyclic number.

It is not a de Polignac number, because 5520636857 - 2¹⁰ = 5520635833 is a prime.

It is not a weakly prime, because it can be changed into another prime (5520636817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760318428 + 2760318429.

It is an arithmetic number, because the mean of its divisors is an integer number (2760318429).

Almost surely, 2^5520636857 is an apocalyptic number.

It is an amenable number.

5520636857 is a deficient number, since it is larger than the sum of its proper divisors (1).

5520636857 is an equidigital number, since it uses as much as digits as its factorization.

5520636857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The square root of 5520636857 is about 74300.9882639525. The cubic root of 5520636857 is about 1767.3791483223.

The spelling of 5520636857 in words is "five billion, five hundred twenty million, six hundred thirty-six thousand, eight hundred fifty-seven".