56143757 has 2 divisors, whose sum is σ = 56143758. Its totient is φ = 56143756.

The previous prime is 56143733. The next prime is 56143777. The reversal of 56143757 is 75734165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29041321 + 27102436 = 5389^2 + 5206^2 .

It is a cyclic number.

It is not a de Polignac number, because 56143757 - 2⁶ = 56143693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56143757.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56143777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28071878 + 28071879.

It is an arithmetic number, because the mean of its divisors is an integer number (28071879).

Almost surely, 2^56143757 is an apocalyptic number.

It is an amenable number.

56143757 is a deficient number, since it is larger than the sum of its proper divisors (1).

56143757 is an equidigital number, since it uses as much as digits as its factorization.

56143757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 38.

The square root of 56143757 is about 7492.9137857045. The cubic root of 56143757 is about 382.9133344936.

The spelling of 56143757 in words is "fifty-six million, one hundred forty-three thousand, seven hundred fifty-seven".