55202716571 has 2 divisors, whose sum is σ = 55202716572. Its totient is φ = 55202716570.

The previous prime is 55202716567. The next prime is 55202716589. The reversal of 55202716571 is 17561720255.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55202716571 - 2² = 55202716567 is a prime.

It is not a weakly prime, because it can be changed into another prime (55202710571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27601358285 + 27601358286.

It is an arithmetic number, because the mean of its divisors is an integer number (27601358286).

Almost surely, 2^55202716571 is an apocalyptic number.

55202716571 is a deficient number, since it is larger than the sum of its proper divisors (1).

55202716571 is an equidigital number, since it uses as much as digits as its factorization.

55202716571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147000, while the sum is 41.

The spelling of 55202716571 in words is "fifty-five billion, two hundred two million, seven hundred sixteen thousand, five hundred seventy-one".