85065570 has 48 divisors (see below), whose sum is σ = 226574712. Its totient is φ = 22129920.

The previous prime is 85065521. The next prime is 85065593. The reversal of 85065570 is 7556058.

85065570 is a `hidden beast` number, since 85 + 0 + 6 + 5 + 570 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 57471561 + 27594009 = 7581^2 + 5253^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7837 + ... + 15216.

Almost surely, 2^85065570 is an apocalyptic number.

85065570 is an abundant number, since it is smaller than the sum of its proper divisors (141509142).

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

85065570 is a wasteful number, since it uses less digits than its factorization.

85065570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23107 (or 23104 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 85065570 is about 9223.0998042957. The cubic root of 85065570 is about 439.7959970278.

The spelling of 85065570 in words is "eighty-five million, sixty-five thousand, five hundred seventy".