85617575 has 6 divisors (see below), whose sum is σ = 106165824. Its totient is φ = 68494040.

The previous prime is 85617563. The next prime is 85617583. The reversal of 85617575 is 57571658.

It is not a de Polignac number, because 85617575 - 2¹⁰ = 85616551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1712327 + ... + 1712376.

It is an arithmetic number, because the mean of its divisors is an integer number (17694304).

Almost surely, 2^85617575 is an apocalyptic number.

85617575 is a deficient number, since it is larger than the sum of its proper divisors (20548249).

85617575 is a wasteful number, since it uses less digits than its factorization.

85617575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424713 (or 3424708 counting only the distinct ones).

The product of its digits is 294000, while the sum is 44.

The square root of 85617575 is about 9252.9765481168. The cubic root of 85617575 is about 440.7452504484.

The spelling of 85617575 in words is "eighty-five million, six hundred seventeen thousand, five hundred seventy-five".