56365145 has 4 divisors (see below), whose sum is σ = 67638180. Its totient is φ = 45092112.

The previous prime is 56365117. The next prime is 56365151. The reversal of 56365145 is 54156365.

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 25684624 + 30680521 = 5068^2 + 5539^2 .

It is a cyclic number.

It is not a de Polignac number, because 56365145 - 2¹⁶ = 56299609 is a prime.

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, 5636510 + ... + 5636519.

It is an arithmetic number, because the mean of its divisors is an integer number (16909545).

Almost surely, 2^56365145 is an apocalyptic number.

It is an amenable number.

56365145 is a deficient number, since it is larger than the sum of its proper divisors (11273035).

56365145 is a wasteful number, since it uses less digits than its factorization.

56365145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273034.

The product of its digits is 54000, while the sum is 35.

The square root of 56365145 is about 7507.6724089427. The cubic root of 56365145 is about 383.4159800797.

The spelling of 56365145 in words is "fifty-six million, three hundred sixty-five thousand, one hundred forty-five".