56705761 has 8 divisors (see below), whose sum is σ = 68618880. Its totient is φ = 45745728.

The previous prime is 56705749. The next prime is 56705771. The reversal of 56705761 is 16750765.

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

It is not a de Polignac number, because 56705761 - 2⁵ = 56705729 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56705761.

It is not an unprimeable number, because it can be changed into a prime (56705771) by changing a digit.

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, 238141 + ... + 238378.

It is an arithmetic number, because the mean of its divisors is an integer number (8577360).

Almost surely, 2^56705761 is an apocalyptic number.

It is an amenable number.

56705761 is a deficient number, since it is larger than the sum of its proper divisors (11913119).

56705761 is a wasteful number, since it uses less digits than its factorization.

56705761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476543.

The product of its (nonzero) digits is 44100, while the sum is 37.

The square root of 56705761 is about 7530.3227686468. The cubic root of 56705761 is about 384.1867603723.

The spelling of 56705761 in words is "fifty-six million, seven hundred five thousand, seven hundred sixty-one".