56505065 has 4 divisors (see below), whose sum is σ = 67806084. Its totient is φ = 45204048.

The previous prime is 56505061. The next prime is 56505073. The reversal of 56505065 is 56050565.

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 14462809 + 42042256 = 3803^2 + 6484^2 .

It is a cyclic number.

It is not a de Polignac number, because 56505065 - 2² = 56505061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56505061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5650502 + ... + 5650511.

It is an arithmetic number, because the mean of its divisors is an integer number (16951521).

Almost surely, 2^56505065 is an apocalyptic number.

It is an amenable number.

56505065 is a deficient number, since it is larger than the sum of its proper divisors (11301019).

56505065 is a wasteful number, since it uses less digits than its factorization.

56505065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11301018.

The product of its (nonzero) digits is 22500, while the sum is 32.

The square root of 56505065 is about 7516.9851004242. The cubic root of 56505065 is about 383.7329799664.

The spelling of 56505065 in words is "fifty-six million, five hundred five thousand, sixty-five".