85588557 has 8 divisors (see below), whose sum is σ = 120830976. Its totient is φ = 53702592.

The previous prime is 85588553. The next prime is 85588561. The reversal of 85588557 is 75588558.

It is an interprime number because it is at equal distance from previous prime (85588553) and next prime (85588561).

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

It is not a de Polignac number, because 85588557 - 2² = 85588553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1678207 = 85588557 / (8 + 5 + 5 + 8 + 8 + 5 + 5 + 7).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85588553) 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, 839053 + ... + 839154.

It is an arithmetic number, because the mean of its divisors is an integer number (15103872).

Almost surely, 2^85588557 is an apocalyptic number.

It is an amenable number.

85588557 is a deficient number, since it is larger than the sum of its proper divisors (35242419).

85588557 is a wasteful number, since it uses less digits than its factorization.

85588557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678227.

The product of its digits is 2240000, while the sum is 51.

The square root of 85588557 is about 9251.4083792685. The cubic root of 85588557 is about 440.6954515185.

Subtracting from 85588557 its reverse (75588558), we obtain a palindrome (9999999).

The spelling of 85588557 in words is "eighty-five million, five hundred eighty-eight thousand, five hundred fifty-seven".