85507745 has 8 divisors (see below), whose sum is σ = 104141184. Its totient is φ = 67384944.

The previous prime is 85507717. The next prime is 85507753. The reversal of 85507745 is 54770558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85507745 - 2⁸ = 85507489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127289 + ... + 127958.

It is an arithmetic number, because the mean of its divisors is an integer number (13017648).

Almost surely, 2^85507745 is an apocalyptic number.

It is an amenable number.

85507745 is a deficient number, since it is larger than the sum of its proper divisors (18633439).

85507745 is a wasteful number, since it uses less digits than its factorization.

85507745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255319.

The product of its (nonzero) digits is 196000, while the sum is 41.

The square root of 85507745 is about 9247.0397966052. The cubic root of 85507745 is about 440.5567075220.

The spelling of 85507745 in words is "eighty-five million, five hundred seven thousand, seven hundred forty-five".