56255647 has 4 divisors (see below), whose sum is σ = 64292176. Its totient is φ = 48219120.

The previous prime is 56255627. The next prime is 56255671. The reversal of 56255647 is 74655265.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74655265 = 5 ⋅14931053.

It is a cyclic number.

It is not a de Polignac number, because 56255647 - 2⁷ = 56255519 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 (56255627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4018254 + ... + 4018267.

It is an arithmetic number, because the mean of its divisors is an integer number (16073044).

Almost surely, 2^56255647 is an apocalyptic number.

56255647 is a deficient number, since it is larger than the sum of its proper divisors (8036529).

56255647 is an equidigital number, since it uses as much as digits as its factorization.

56255647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036528.

The product of its digits is 252000, while the sum is 40.

The square root of 56255647 is about 7500.3764572187. The cubic root of 56255647 is about 383.1675375436.

The spelling of 56255647 in words is "fifty-six million, two hundred fifty-five thousand, six hundred forty-seven".