85586533 has 2 divisors, whose sum is σ = 85586534. Its totient is φ = 85586532.

The previous prime is 85586531. The next prime is 85586561. The reversal of 85586533 is 33568558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85507009 + 79524 = 9247^2 + 282^2 .

It is a cyclic number.

It is not a de Polignac number, because 85586533 - 2¹ = 85586531 is a prime.

Together with 85586531, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 85586533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85586531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42793266 + 42793267.

It is an arithmetic number, because the mean of its divisors is an integer number (42793267).

Almost surely, 2^85586533 is an apocalyptic number.

It is an amenable number.

85586533 is a deficient number, since it is larger than the sum of its proper divisors (1).

85586533 is an equidigital number, since it uses as much as digits as its factorization.

85586533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432000, while the sum is 43.

The square root of 85586533 is about 9251.2989898716. The cubic root of 85586533 is about 440.6919776326.

The spelling of 85586533 in words is "eighty-five million, five hundred eighty-six thousand, five hundred thirty-three".