56561383 has 8 divisors (see below), whose sum is σ = 58058000. Its totient is φ = 55073088.

The previous prime is 56561381. The next prime is 56561389. The reversal of 56561383 is 38316565.

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

It is a cyclic number.

It is not a de Polignac number, because 56561383 - 2¹ = 56561381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56561381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13123 + ... + 16891.

It is an arithmetic number, because the mean of its divisors is an integer number (7257250).

Almost surely, 2^56561383 is an apocalyptic number.

56561383 is a deficient number, since it is larger than the sum of its proper divisors (1496617).

56561383 is a wasteful number, since it uses less digits than its factorization.

56561383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161.

The product of its digits is 64800, while the sum is 37.

The square root of 56561383 is about 7520.7302172063. The cubic root of 56561383 is about 383.8604251674.

The spelling of 56561383 in words is "fifty-six million, five hundred sixty-one thousand, three hundred eighty-three".