85654573 has 2 divisors, whose sum is σ = 85654574. Its totient is φ = 85654572.

The previous prime is 85654571. The next prime is 85654577. The reversal of 85654573 is 37545658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66879684 + 18774889 = 8178^2 + 4333^2 .

It is a cyclic number.

It is not a de Polignac number, because 85654573 - 2¹ = 85654571 is a prime.

Together with 85654571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85654571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42827286 + 42827287.

It is an arithmetic number, because the mean of its divisors is an integer number (42827287).

Almost surely, 2^85654573 is an apocalyptic number.

It is an amenable number.

85654573 is a deficient number, since it is larger than the sum of its proper divisors (1).

85654573 is an equidigital number, since it uses as much as digits as its factorization.

85654573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504000, while the sum is 43.

The square root of 85654573 is about 9254.9755807349. The cubic root of 85654573 is about 440.8087278534.

The spelling of 85654573 in words is "eighty-five million, six hundred fifty-four thousand, five hundred seventy-three".