85525648573 has 2 divisors, whose sum is σ = 85525648574. Its totient is φ = 85525648572.

The previous prime is 85525648547. The next prime is 85525648577. The reversal of 85525648573 is 37584652558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75472177284 + 10053471289 = 274722^2 + 100267^2 .

It is a cyclic number.

It is not a de Polignac number, because 85525648573 - 2⁵ = 85525648541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85525648577) 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, 42762824286 + 42762824287.

It is an arithmetic number, because the mean of its divisors is an integer number (42762824287).

Almost surely, 2^85525648573 is an apocalyptic number.

It is an amenable number.

85525648573 is a deficient number, since it is larger than the sum of its proper divisors (1).

85525648573 is an equidigital number, since it uses as much as digits as its factorization.

85525648573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320000, while the sum is 58.

The spelling of 85525648573 in words is "eighty-five billion, five hundred twenty-five million, six hundred forty-eight thousand, five hundred seventy-three".