85655622 has 48 divisors (see below), whose sum is σ = 196454160. Its totient is φ = 24800256.

The previous prime is 85655621. The next prime is 85655623. The reversal of 85655622 is 22655658.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85655621) and next prime (85655623).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85655621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14754 + ... + 19722.

It is an arithmetic number, because the mean of its divisors is an integer number (4092795).

Almost surely, 2^85655622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85655622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98227080).

85655622 is an abundant number, since it is smaller than the sum of its proper divisors (110798538).

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

85655622 is a wasteful number, since it uses less digits than its factorization.

85655622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5017 (or 5004 counting only the distinct ones).

The product of its digits is 144000, while the sum is 39.

The square root of 85655622 is about 9255.0322527801. The cubic root of 85655622 is about 440.8105273544.

The spelling of 85655622 in words is "eighty-five million, six hundred fifty-five thousand, six hundred twenty-two".