85255089 has 16 divisors (see below), whose sum is σ = 119048832. Its totient is φ = 54167168.

The previous prime is 85255087. The next prime is 85255091. The reversal of 85255089 is 98055258.

It is an interprime number because it is at equal distance from previous prime (85255087) and next prime (85255091).

It is a cyclic number.

It is not a de Polignac number, because 85255089 - 2¹ = 85255087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85255089.

It is not an unprimeable number, because it can be changed into a prime (85255081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18109 + ... + 22325.

It is an arithmetic number, because the mean of its divisors is an integer number (7440552).

Almost surely, 2^85255089 is an apocalyptic number.

It is an amenable number.

85255089 is a deficient number, since it is larger than the sum of its proper divisors (33793743).

85255089 is a wasteful number, since it uses less digits than its factorization.

85255089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4536.

The product of its (nonzero) digits is 144000, while the sum is 42.

The square root of 85255089 is about 9233.3682369978. The cubic root of 85255089 is about 440.1223643832.

The spelling of 85255089 in words is "eighty-five million, two hundred fifty-five thousand, eighty-nine".