56713777 has 2 divisors, whose sum is σ = 56713778. Its totient is φ = 56713776.

The previous prime is 56713747. The next prime is 56713781. The reversal of 56713777 is 77731765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34586161 + 22127616 = 5881^2 + 4704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56713777 is a prime.

It is not a weakly prime, because it can be changed into another prime (56713747) 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 as a sum of consecutive naturals, namely, 28356888 + 28356889.

It is an arithmetic number, because the mean of its divisors is an integer number (28356889).

Almost surely, 2^56713777 is an apocalyptic number.

It is an amenable number.

56713777 is a deficient number, since it is larger than the sum of its proper divisors (1).

56713777 is an equidigital number, since it uses as much as digits as its factorization.

56713777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216090, while the sum is 43.

The square root of 56713777 is about 7530.8549979401. The cubic root of 56713777 is about 384.2048625658.

The spelling of 56713777 in words is "fifty-six million, seven hundred thirteen thousand, seven hundred seventy-seven".