56321723 has 2 divisors, whose sum is σ = 56321724. Its totient is φ = 56321722.

The previous prime is 56321711. The next prime is 56321729. The reversal of 56321723 is 32712365.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56321723 - 2⁸ = 56321467 is a prime.

It is not a weakly prime, because it can be changed into another prime (56321729) 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, 28160861 + 28160862.

It is an arithmetic number, because the mean of its divisors is an integer number (28160862).

Almost surely, 2^56321723 is an apocalyptic number.

56321723 is a deficient number, since it is larger than the sum of its proper divisors (1).

56321723 is an equidigital number, since it uses as much as digits as its factorization.

56321723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 29.

The square root of 56321723 is about 7504.7800101002. The cubic root of 56321723 is about 383.3174974344.

The spelling of 56321723 in words is "fifty-six million, three hundred twenty-one thousand, seven hundred twenty-three".