56255566 has 4 divisors (see below), whose sum is σ = 84383352. Its totient is φ = 28127782.

The previous prime is 56255557. The next prime is 56255579. The reversal of 56255566 is 66555265.

56255566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14063890 + ... + 14063893.

It is an arithmetic number, because the mean of its divisors is an integer number (21095838).

Almost surely, 2^56255566 is an apocalyptic number.

56255566 is a deficient number, since it is larger than the sum of its proper divisors (28127786).

56255566 is a wasteful number, since it uses less digits than its factorization.

56255566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28127785.

The product of its digits is 270000, while the sum is 40.

The square root of 56255566 is about 7500.3710574878. The cubic root of 56255566 is about 383.1673536416.

The spelling of 56255566 in words is "fifty-six million, two hundred fifty-five thousand, five hundred sixty-six".