56516771 has 2 divisors, whose sum is σ = 56516772. Its totient is φ = 56516770.

The previous prime is 56516767. The next prime is 56516783. The reversal of 56516771 is 17761565.

56516771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56516771 - 2² = 56516767 is a prime.

It is not a weakly prime, because it can be changed into another prime (56516791) 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, 28258385 + 28258386.

It is an arithmetic number, because the mean of its divisors is an integer number (28258386).

Almost surely, 2^56516771 is an apocalyptic number.

56516771 is a deficient number, since it is larger than the sum of its proper divisors (1).

56516771 is an equidigital number, since it uses as much as digits as its factorization.

56516771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 38.

The square root of 56516771 is about 7517.7636967385. The cubic root of 56516771 is about 383.7594771079.

The spelling of 56516771 in words is "fifty-six million, five hundred sixteen thousand, seven hundred seventy-one".