68052865 has 4 divisors (see below), whose sum is σ = 81663444. Its totient is φ = 54442288.

The previous prime is 68052847. The next prime is 68052911. The reversal of 68052865 is 56825086.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13897984 + 54154881 = 3728^2 + 7359^2 .

It is a cyclic number.

It is not a de Polignac number, because 68052865 - 2⁵ = 68052833 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6805282 + ... + 6805291.

It is an arithmetic number, because the mean of its divisors is an integer number (20415861).

Almost surely, 2^68052865 is an apocalyptic number.

It is an amenable number.

68052865 is a deficient number, since it is larger than the sum of its proper divisors (13610579).

68052865 is a wasteful number, since it uses less digits than its factorization.

68052865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13610578.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 68052865 is about 8249.4160399388. The cubic root of 68052865 is about 408.2712556840.

The spelling of 68052865 in words is "sixty-eight million, fifty-two thousand, eight hundred sixty-five".