85620565 has 8 divisors (see below), whose sum is σ = 102804480. Its totient is φ = 68456592.

The previous prime is 85620529. The next prime is 85620569. The reversal of 85620565 is 56502658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85620565 - 2¹⁵ = 85587797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85620569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7156 + ... + 14914.

It is an arithmetic number, because the mean of its divisors is an integer number (12850560).

Almost surely, 2^85620565 is an apocalyptic number.

It is an amenable number.

85620565 is a deficient number, since it is larger than the sum of its proper divisors (17183915).

85620565 is a wasteful number, since it uses less digits than its factorization.

85620565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9971.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 85620565 is about 9253.1381163365. The cubic root of 85620565 is about 440.7503810654.

The spelling of 85620565 in words is "eighty-five million, six hundred twenty thousand, five hundred sixty-five".