85689255 has 8 divisors (see below), whose sum is σ = 137102832. Its totient is φ = 45700928.

The previous prime is 85689251. The next prime is 85689257. The reversal of 85689255 is 55298658.

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 85689255 - 2² = 85689251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85689251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2856294 + ... + 2856323.

It is an arithmetic number, because the mean of its divisors is an integer number (17137854).

Almost surely, 2^85689255 is an apocalyptic number.

85689255 is a deficient number, since it is larger than the sum of its proper divisors (51413577).

85689255 is a wasteful number, since it uses less digits than its factorization.

85689255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712625.

The product of its digits is 864000, while the sum is 48.

The square root of 85689255 is about 9256.8490859471. The cubic root of 85689255 is about 440.8682151048.

The spelling of 85689255 in words is "eighty-five million, six hundred eighty-nine thousand, two hundred fifty-five".