85255170 has 256 divisors, whose sum is σ = 292626432. Its totient is φ = 15298560.

The previous prime is 85255169. The next prime is 85255171. The reversal of 85255170 is 7155258.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85255169) and next prime (85255171).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (85255171) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 510427 + ... + 510593.

It is an arithmetic number, because the mean of its divisors is an integer number (1143072).

Almost surely, 2^85255170 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85255170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146313216).

85255170 is an abundant number, since it is smaller than the sum of its proper divisors (207371262).

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

85255170 is a wasteful number, since it uses less digits than its factorization.

85255170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225.

The product of its (nonzero) digits is 14000, while the sum is 33.

The square root of 85255170 is about 9233.3726232618. The cubic root of 85255170 is about 440.1225037684.

It can be divided in two parts, 8525 and 5170, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 85255170 in words is "eighty-five million, two hundred fifty-five thousand, one hundred seventy".