56255791 has 2 divisors, whose sum is σ = 56255792. Its totient is φ = 56255790.

The previous prime is 56255783. The next prime is 56255809. The reversal of 56255791 is 19755265.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56255791 - 2³ = 56255783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56255711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28127895 + 28127896.

It is an arithmetic number, because the mean of its divisors is an integer number (28127896).

Almost surely, 2^56255791 is an apocalyptic number.

56255791 is a deficient number, since it is larger than the sum of its proper divisors (1).

56255791 is an equidigital number, since it uses as much as digits as its factorization.

56255791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94500, while the sum is 40.

The square root of 56255791 is about 7500.3860567307. The cubic root of 56255791 is about 383.1678644802.

The spelling of 56255791 in words is "fifty-six million, two hundred fifty-five thousand, seven hundred ninety-one".