68564585 has 8 divisors (see below), whose sum is σ = 82830600. Its totient is φ = 54482944.

The previous prime is 68564533. The next prime is 68564609. The reversal of 68564585 is 58546586.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5139289 + 63425296 = 2267^2 + 7964^2 .

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 68564585 - 2⁸ = 68564329 is a prime.

It is a super-2 number, since 2×68564585² = 9402204632444450, which contains 22 as substring.

It is a Curzon number.

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, 45272 + ... + 46761.

It is an arithmetic number, because the mean of its divisors is an integer number (10353825).

Almost surely, 2^68564585 is an apocalyptic number.

It is an amenable number.

68564585 is a deficient number, since it is larger than the sum of its proper divisors (14266015).

68564585 is a wasteful number, since it uses less digits than its factorization.

68564585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92187.

The product of its digits is 1152000, while the sum is 47.

The square root of 68564585 is about 8280.3734819149. The cubic root of 68564585 is about 409.2920262659.

The spelling of 68564585 in words is "sixty-eight million, five hundred sixty-four thousand, five hundred eighty-five".