68352565 has 16 divisors (see below), whose sum is σ = 85100400. Its totient is φ = 52641792.

The previous prime is 68352553. The next prime is 68352569. The reversal of 68352565 is 56525386.

It can be written as a sum of positive squares in 8 ways, for example, as 14447601 + 53904964 = 3801^2 + 7342^2 .

It is a cyclic number.

It is not a de Polignac number, because 68352565 - 2⁵ = 68352533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68352569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88501 + ... + 89269.

It is an arithmetic number, because the mean of its divisors is an integer number (5318775).

Almost surely, 2^68352565 is an apocalyptic number.

It is an amenable number.

68352565 is a deficient number, since it is larger than the sum of its proper divisors (16747835).

68352565 is a wasteful number, since it uses less digits than its factorization.

68352565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its digits is 216000, while the sum is 40.

The square root of 68352565 is about 8267.5610067299. The cubic root of 68352565 is about 408.8697105937.

The spelling of 68352565 in words is "sixty-eight million, three hundred fifty-two thousand, five hundred sixty-five".