56767771 has 2 divisors, whose sum is σ = 56767772. Its totient is φ = 56767770.

The previous prime is 56767751. The next prime is 56767787. The reversal of 56767771 is 17776765.

56767771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56767771 - 2⁷ = 56767643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56767721) 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 as a sum of consecutive naturals, namely, 28383885 + 28383886.

It is an arithmetic number, because the mean of its divisors is an integer number (28383886).

Almost surely, 2^56767771 is an apocalyptic number.

56767771 is a deficient number, since it is larger than the sum of its proper divisors (1).

56767771 is an equidigital number, since it uses as much as digits as its factorization.

56767771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432180, while the sum is 46.

The square root of 56767771 is about 7534.4389970322. The cubic root of 56767771 is about 384.3267505127.

The spelling of 56767771 in words is "fifty-six million, seven hundred sixty-seven thousand, seven hundred seventy-one".