85259489 has 8 divisors (see below), whose sum is σ = 97495680. Its totient is φ = 73037376.

The previous prime is 85259477. The next prime is 85259501. The reversal of 85259489 is 98495258.

It is an interprime number because it is at equal distance from previous prime (85259477) and next prime (85259501).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85259489 is a prime.

It is a super-2 number, since 2×85259489² = 14538360929082242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85259389) 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 7 ways as a sum of consecutive naturals, for example, 19652 + ... + 23594.

It is an arithmetic number, because the mean of its divisors is an integer number (12186960).

Almost surely, 2^85259489 is an apocalyptic number.

It is an amenable number.

85259489 is a deficient number, since it is larger than the sum of its proper divisors (12236191).

85259489 is a wasteful number, since it uses less digits than its factorization.

85259489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7039.

The product of its digits is 1036800, while the sum is 50.

The square root of 85259489 is about 9233.6065001710. The cubic root of 85259489 is about 440.1299357986.

The spelling of 85259489 in words is "eighty-five million, two hundred fifty-nine thousand, four hundred eighty-nine".