56555705 has 16 divisors (see below), whose sum is σ = 69784320. Its totient is φ = 43984512.

The previous prime is 56555683. The next prime is 56555729. The reversal of 56555705 is 50755565.

It is a cyclic number.

It is not a de Polignac number, because 56555705 - 2²⁰ = 55507129 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25397 + ... + 27533.

It is an arithmetic number, because the mean of its divisors is an integer number (4361520).

Almost surely, 2^56555705 is an apocalyptic number.

It is an amenable number.

56555705 is a deficient number, since it is larger than the sum of its proper divisors (13228615).

56555705 is a wasteful number, since it uses less digits than its factorization.

56555705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2288.

The product of its (nonzero) digits is 131250, while the sum is 38.

The square root of 56555705 is about 7520.3527177919. The cubic root of 56555705 is about 383.8475799344.

The spelling of 56555705 in words is "fifty-six million, five hundred fifty-five thousand, seven hundred five".