56656655 has 8 divisors (see below), whose sum is σ = 74168784. Its totient is φ = 41204800.

The previous prime is 56656643. The next prime is 56656673. The reversal of 56656655 is 55665665.

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

It is not a de Polignac number, because 56656655 - 2⁶ = 56656591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515006 + ... + 515115.

It is an arithmetic number, because the mean of its divisors is an integer number (9271098).

Almost surely, 2^56656655 is an apocalyptic number.

56656655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

56656655 is a deficient number, since it is larger than the sum of its proper divisors (17512129).

56656655 is a wasteful number, since it uses less digits than its factorization.

56656655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030137.

The product of its digits is 810000, while the sum is 44.

The square root of 56656655 is about 7527.0615116392. The cubic root of 56656655 is about 384.0758291185.

The spelling of 56656655 in words is "fifty-six million, six hundred fifty-six thousand, six hundred fifty-five".