85852566 has 24 divisors (see below), whose sum is σ = 187935384. Its totient is φ = 28321920.

The previous prime is 85852519. The next prime is 85852603. The reversal of 85852566 is 66525858.

85852566 is a `hidden beast` number, since 8 + 5 + 85 + 2 + 566 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22840 + ... + 26331.

It is an arithmetic number, because the mean of its divisors is an integer number (7830641).

Almost surely, 2^85852566 is an apocalyptic number.

85852566 is an abundant number, since it is smaller than the sum of its proper divisors (102082818).

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

85852566 is a wasteful number, since it uses less digits than its factorization.

85852566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49276 (or 49273 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 85852566 is about 9265.6659771438. The cubic root of 85852566 is about 441.1481138229.

The spelling of 85852566 in words is "eighty-five million, eight hundred fifty-two thousand, five hundred sixty-six".