85225560 has 128 divisors (see below), whose sum is σ = 296524800. Its totient is φ = 19192320.

The previous prime is 85225513. The next prime is 85225571. The reversal of 85225560 is 6552258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58926 + ... + 60354.

It is an arithmetic number, because the mean of its divisors is an integer number (2316600).

Almost surely, 2^85225560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85225560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148262400).

85225560 is an abundant number, since it is smaller than the sum of its proper divisors (211299240).

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

85225560 is a wasteful number, since it uses less digits than its factorization.

85225560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521 (or 1517 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

The square root of 85225560 is about 9231.7690612363. The cubic root of 85225560 is about 440.0715448399.

The spelling of 85225560 in words is "eighty-five million, two hundred twenty-five thousand, five hundred sixty".