56945065 has 4 divisors (see below), whose sum is σ = 68334084. Its totient is φ = 45556048.

The previous prime is 56945039. The next prime is 56945069. The reversal of 56945065 is 56054965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56054965 = 5 ⋅11210993.

It can be written as a sum of positive squares in 2 ways, for example, as 34892649 + 22052416 = 5907^2 + 4696^2 .

It is a cyclic number.

It is not a de Polignac number, because 56945065 - 2⁹ = 56944553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56945069) 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, 5694502 + ... + 5694511.

It is an arithmetic number, because the mean of its divisors is an integer number (17083521).

Almost surely, 2^56945065 is an apocalyptic number.

It is an amenable number.

56945065 is a deficient number, since it is larger than the sum of its proper divisors (11389019).

56945065 is a wasteful number, since it uses less digits than its factorization.

56945065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11389018.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 56945065 is about 7546.1953990074. The cubic root of 56945065 is about 384.7264374754.

The spelling of 56945065 in words is "fifty-six million, nine hundred forty-five thousand, sixty-five".