85580065 has 8 divisors (see below), whose sum is σ = 102827880. Its totient is φ = 68376192.

The previous prime is 85580051. The next prime is 85580071. The reversal of 85580065 is 56008558.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4363921 + 81216144 = 2089^2 + 9012^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85580065 is a prime.

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, 6534 + ... + 14623.

It is an arithmetic number, because the mean of its divisors is an integer number (12853485).

Almost surely, 2^85580065 is an apocalyptic number.

It is an amenable number.

85580065 is a deficient number, since it is larger than the sum of its proper divisors (17247815).

85580065 is a wasteful number, since it uses less digits than its factorization.

85580065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21971.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 85580065 is about 9250.9494107362. The cubic root of 85580065 is about 440.6808759347.

The spelling of 85580065 in words is "eighty-five million, five hundred eighty thousand, sixty-five".