56255729 has 2 divisors, whose sum is σ = 56255730. Its totient is φ = 56255728.

The previous prime is 56255711. The next prime is 56255777. The reversal of 56255729 is 92755265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54760000 + 1495729 = 7400^2 + 1223^2 .

It is a cyclic number.

It is not a de Polignac number, because 56255729 - 2¹⁶ = 56190193 is a prime.

It is not a weakly prime, because it can be changed into another prime (56255779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28127864 + 28127865.

It is an arithmetic number, because the mean of its divisors is an integer number (28127865).

Almost surely, 2^56255729 is an apocalyptic number.

It is an amenable number.

56255729 is a deficient number, since it is larger than the sum of its proper divisors (1).

56255729 is an equidigital number, since it uses as much as digits as its factorization.

56255729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 189000, while the sum is 41.

The square root of 56255729 is about 7500.3819236090. The cubic root of 56255729 is about 383.1677237159.

The spelling of 56255729 in words is "fifty-six million, two hundred fifty-five thousand, seven hundred twenty-nine".