97557075571 has 2 divisors, whose sum is σ = 97557075572. Its totient is φ = 97557075570.

The previous prime is 97557075487. The next prime is 97557075587. The reversal of 97557075571 is 17557075579.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97557075571 - 2⁷ = 97557075443 is a prime.

It is not a weakly prime, because it can be changed into another prime (97557375571) 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, 48778537785 + 48778537786.

It is an arithmetic number, because the mean of its divisors is an integer number (48778537786).

Almost surely, 2^97557075571 is an apocalyptic number.

97557075571 is a deficient number, since it is larger than the sum of its proper divisors (1).

97557075571 is an equidigital number, since it uses as much as digits as its factorization.

97557075571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13505625, while the sum is 58.

The spelling of 97557075571 in words is "ninety-seven billion, five hundred fifty-seven million, seventy-five thousand, five hundred seventy-one".