56067779 has 2 divisors, whose sum is σ = 56067780. Its totient is φ = 56067778.

The previous prime is 56067773. The next prime is 56067793. The reversal of 56067779 is 97776065.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56067779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56067773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28033889 + 28033890.

It is an arithmetic number, because the mean of its divisors is an integer number (28033890).

Almost surely, 2^56067779 is an apocalyptic number.

56067779 is a deficient number, since it is larger than the sum of its proper divisors (1).

56067779 is an equidigital number, since it uses as much as digits as its factorization.

56067779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 555660, while the sum is 47.

The square root of 56067779 is about 7487.8420789971. The cubic root of 56067779 is about 382.7405273739.

The spelling of 56067779 in words is "fifty-six million, sixty-seven thousand, seven hundred seventy-nine".