56389205 has 4 divisors (see below), whose sum is σ = 67667052. Its totient is φ = 45111360.

The previous prime is 56389181. The next prime is 56389213. The reversal of 56389205 is 50298365.

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 25664356 + 30724849 = 5066^2 + 5543^2 .

It is not a de Polignac number, because 56389205 - 2¹⁴ = 56372821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5638916 + ... + 5638925.

It is an arithmetic number, because the mean of its divisors is an integer number (16916763).

Almost surely, 2^56389205 is an apocalyptic number.

It is an amenable number.

56389205 is a deficient number, since it is larger than the sum of its proper divisors (11277847).

56389205 is a wasteful number, since it uses less digits than its factorization.

56389205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11277846.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 56389205 is about 7509.2745987878. The cubic root of 56389205 is about 383.4705272423.

The spelling of 56389205 in words is "fifty-six million, three hundred eighty-nine thousand, two hundred five".