56003749 has 2 divisors, whose sum is σ = 56003750. Its totient is φ = 56003748.

The previous prime is 56003747. The next prime is 56003771. The reversal of 56003749 is 94730065.

56003749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55606849 + 396900 = 7457^2 + 630^2 .

It is a cyclic number.

It is not a de Polignac number, because 56003749 - 2¹ = 56003747 is a prime.

Together with 56003747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56003741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28001874 + 28001875.

It is an arithmetic number, because the mean of its divisors is an integer number (28001875).

Almost surely, 2^56003749 is an apocalyptic number.

It is an amenable number.

56003749 is a deficient number, since it is larger than the sum of its proper divisors (1).

56003749 is an equidigital number, since it uses as much as digits as its factorization.

56003749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 56003749 is about 7483.5652599546. The cubic root of 56003749 is about 382.5947739580.

The spelling of 56003749 in words is "fifty-six million, three thousand, seven hundred forty-nine".