56705767 has 4 divisors (see below), whose sum is σ = 57033720. Its totient is φ = 56377816.

The previous prime is 56705749. The next prime is 56705771. The reversal of 56705767 is 76750765.

56705767 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 cyclic number.

It is not a de Polignac number, because 56705767 - 2⁷ = 56705639 is a prime.

It is a super-2 number, since 2×56705767² = 6431088022116578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56705717) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 163717 + ... + 164062.

It is an arithmetic number, because the mean of its divisors is an integer number (14258430).

Almost surely, 2^56705767 is an apocalyptic number.

56705767 is a deficient number, since it is larger than the sum of its proper divisors (327953).

56705767 is a wasteful number, since it uses less digits than its factorization.

56705767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327952.

The product of its (nonzero) digits is 308700, while the sum is 43.

The square root of 56705767 is about 7530.3231670361. The cubic root of 56705767 is about 384.1867739225.

The spelling of 56705767 in words is "fifty-six million, seven hundred five thousand, seven hundred sixty-seven".