85325220 has 36 divisors (see below), whose sum is σ = 258820380. Its totient is φ = 22753344.

The previous prime is 85325213. The next prime is 85325263. The reversal of 85325220 is 2252358.

It can be written as a sum of positive squares in 2 ways, for example, as 41447844 + 43877376 = 6438^2 + 6624^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236835 + ... + 237194.

It is an arithmetic number, because the mean of its divisors is an integer number (7189455).

Almost surely, 2^85325220 is an apocalyptic number.

It is an amenable number.

85325220 is an abundant number, since it is smaller than the sum of its proper divisors (173495160).

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

85325220 is a wasteful number, since it uses less digits than its factorization.

85325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474044 (or 474039 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 85325220 is about 9237.1651495467. The cubic root of 85325220 is about 440.2430131414.

Adding to 85325220 its reverse (2252358), we get a palindrome (87577578).

The spelling of 85325220 in words is "eighty-five million, three hundred twenty-five thousand, two hundred twenty".