85965558 has 16 divisors (see below), whose sum is σ = 196492800. Its totient is φ = 24561576.

The previous prime is 85965553. The next prime is 85965577. The reversal of 85965558 is 85556958.

It is a super-3 number, since 3×85965558³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85965558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85965553) 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, 1023358 + ... + 1023441.

It is an arithmetic number, because the mean of its divisors is an integer number (12280800).

Almost surely, 2^85965558 is an apocalyptic number.

85965558 is an abundant number, since it is smaller than the sum of its proper divisors (110527242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85965558 is a wasteful number, since it uses less digits than its factorization.

85965558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046811.

The product of its digits is 2160000, while the sum is 51.

The square root of 85965558 is about 9271.7613213456. The cubic root of 85965558 is about 441.3415631208.

The spelling of 85965558 in words is "eighty-five million, nine hundred sixty-five thousand, five hundred fifty-eight".