56054891 has 2 divisors, whose sum is σ = 56054892. Its totient is φ = 56054890.

The previous prime is 56054863. The next prime is 56054927. The reversal of 56054891 is 19845065.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56054891 - 2⁶ = 56054827 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (56054861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28027445 + 28027446.

It is an arithmetic number, because the mean of its divisors is an integer number (28027446).

Almost surely, 2^56054891 is an apocalyptic number.

56054891 is a deficient number, since it is larger than the sum of its proper divisors (1).

56054891 is an equidigital number, since it uses as much as digits as its factorization.

56054891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 56054891 is about 7486.9814344634. The cubic root of 56054891 is about 382.7111989550.

The spelling of 56054891 in words is "fifty-six million, fifty-four thousand, eight hundred ninety-one".