85298558 has 4 divisors (see below), whose sum is σ = 127947840. Its totient is φ = 42649278.

The previous prime is 85298531. The next prime is 85298569. The reversal of 85298558 is 85589258.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85589258 = 2 ⋅42794629.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21324638 + ... + 21324641.

It is an arithmetic number, because the mean of its divisors is an integer number (31986960).

Almost surely, 2^85298558 is an apocalyptic number.

85298558 is a deficient number, since it is larger than the sum of its proper divisors (42649282).

85298558 is a wasteful number, since it uses less digits than its factorization.

85298558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42649281.

The product of its digits is 1152000, while the sum is 50.

The square root of 85298558 is about 9235.7218450969. The cubic root of 85298558 is about 440.1971533827.

The spelling of 85298558 in words is "eighty-five million, two hundred ninety-eight thousand, five hundred fifty-eight".