85271570 has 16 divisors (see below), whose sum is σ = 155780928. Its totient is φ = 33599280.

The previous prime is 85271561. The next prime is 85271591. The reversal of 85271570 is 7517258.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85271570.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62966 + ... + 64305.

It is an arithmetic number, because the mean of its divisors is an integer number (9736308).

Almost surely, 2^85271570 is an apocalyptic number.

85271570 is a deficient number, since it is larger than the sum of its proper divisors (70509358).

85271570 is a wasteful number, since it uses less digits than its factorization.

85271570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127345.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 85271570 is about 9234.2606634208. The cubic root of 85271570 is about 440.1507231569.

The spelling of 85271570 in words is "eighty-five million, two hundred seventy-one thousand, five hundred seventy".