56565442 has 8 divisors (see below), whose sum is σ = 84934332. Its totient is φ = 28254000.

The previous prime is 56565433. The next prime is 56565473. The reversal of 56565442 is 24456565.

It is a Cunningham number, because it is equal to 7521²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 56565441 + 1 = 7521^2 + 1^2 .

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

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, 11809 + ... + 15892.

Almost surely, 2^56565442 is an apocalyptic number.

56565442 is a deficient number, since it is larger than the sum of its proper divisors (28368890).

56565442 is a wasteful number, since it uses less digits than its factorization.

56565442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28724.

The product of its digits is 144000, while the sum is 37.

The square root of 56565442 is about 7521.0000664805. Note that the first 4 decimals coincide. The cubic root of 56565442 is about 383.8696072401.

The spelling of 56565442 in words is "fifty-six million, five hundred sixty-five thousand, four hundred forty-two".