85975558 has 4 divisors (see below), whose sum is σ = 128963340. Its totient is φ = 42987778.

The previous prime is 85975507. The next prime is 85975559. The reversal of 85975558 is 85557958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85557958 = 2 ⋅42778979.

It is a super-3 number, since 3×85975558³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85975559) 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 as a sum of consecutive naturals, namely, 21493888 + ... + 21493891.

It is an arithmetic number, because the mean of its divisors is an integer number (32240835).

Almost surely, 2^85975558 is an apocalyptic number.

85975558 is a deficient number, since it is larger than the sum of its proper divisors (42987782).

85975558 is a wasteful number, since it uses less digits than its factorization.

85975558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42987781.

The product of its digits is 2520000, while the sum is 52.

The square root of 85975558 is about 9272.3005775266. The cubic root of 85975558 is about 441.3586755730.

The spelling of 85975558 in words is "eighty-five million, nine hundred seventy-five thousand, five hundred fifty-eight".