97539822585 has 48 divisors (see below), whose sum is σ = 171963846288. Its totient is φ = 51131750400.

The previous prime is 97539822571. The next prime is 97539822713. The reversal of 97539822585 is 58522893579.

97539822585 is a `hidden beast` number, since 97 + 539 + 8 + 2 + 2 + 5 + 8 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 48139870464 + 49399952121 = 219408^2 + 222261^2 .

It is not a de Polignac number, because 97539822585 - 2⁶ = 97539822521 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 in 47 ways as a sum of consecutive naturals, for example, 4053349 + ... + 4077341.

It is an arithmetic number, because the mean of its divisors is an integer number (3582580131).

Almost surely, 2^97539822585 is an apocalyptic number.

It is an amenable number.

97539822585 is a deficient number, since it is larger than the sum of its proper divisors (74424023703).

97539822585 is a wasteful number, since it uses less digits than its factorization.

97539822585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25546 (or 25543 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 63.

The spelling of 97539822585 in words is "ninety-seven billion, five hundred thirty-nine million, eight hundred twenty-two thousand, five hundred eighty-five".