85530580 has 12 divisors (see below), whose sum is σ = 179614260. Its totient is φ = 34212224.

The previous prime is 85530547. The next prime is 85530631. The reversal of 85530580 is 8503558.

It can be written as a sum of positive squares in 2 ways, for example, as 22867524 + 62663056 = 4782^2 + 7916^2 .

It is a super-3 number, since 3×85530580³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2138245 + ... + 2138284.

It is an arithmetic number, because the mean of its divisors is an integer number (14967855).

Almost surely, 2^85530580 is an apocalyptic number.

It is an amenable number.

85530580 is an abundant number, since it is smaller than the sum of its proper divisors (94083680).

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

85530580 is a wasteful number, since it uses less digits than its factorization.

85530580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4276538 (or 4276536 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 85530580 is about 9248.2744336444. The cubic root of 85530580 is about 440.5959211902.

The spelling of 85530580 in words is "eighty-five million, five hundred thirty thousand, five hundred eighty".