56057747 has 2 divisors, whose sum is σ = 56057748. Its totient is φ = 56057746.

The previous prime is 56057741. The next prime is 56057753. The reversal of 56057747 is 74775065.

It is a balanced prime because it is at equal distance from previous prime (56057741) and next prime (56057753).

It is a cyclic number.

It is not a de Polignac number, because 56057747 - 2²² = 51863443 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56057741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28028873 + 28028874.

It is an arithmetic number, because the mean of its divisors is an integer number (28028874).

Almost surely, 2^56057747 is an apocalyptic number.

56057747 is a deficient number, since it is larger than the sum of its proper divisors (1).

56057747 is an equidigital number, since it uses as much as digits as its factorization.

56057747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 205800, while the sum is 41.

The square root of 56057747 is about 7487.1721631067. The cubic root of 56057747 is about 382.7176985640.

The spelling of 56057747 in words is "fifty-six million, fifty-seven thousand, seven hundred forty-seven".