56565445 has 8 divisors (see below), whose sum is σ = 69534360. Its totient is φ = 44148480.

The previous prime is 56565433. The next prime is 56565473. The reversal of 56565445 is 54456565.

It can be written as a sum of positive squares in 4 ways, for example, as 4 + 56565441 = 2^2 + 7521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56565445 - 2¹⁵ = 56532677 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56565398 and 56565407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137760 + ... + 138169.

It is an arithmetic number, because the mean of its divisors is an integer number (8691795).

Almost surely, 2^56565445 is an apocalyptic number.

It is an amenable number.

56565445 is a deficient number, since it is larger than the sum of its proper divisors (12968915).

56565445 is a wasteful number, since it uses less digits than its factorization.

56565445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275975.

The product of its digits is 360000, while the sum is 40.

The square root of 56565445 is about 7521.0002659221. Note that the first 3 decimals coincide. The cubic root of 56565445 is about 383.8696140264.

The spelling of 56565445 in words is "fifty-six million, five hundred sixty-five thousand, four hundred forty-five".