56855749 has 2 divisors, whose sum is σ = 56855750. Its totient is φ = 56855748.

The previous prime is 56855723. The next prime is 56855753. The reversal of 56855749 is 94755865.

56855749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56776225 + 79524 = 7535^2 + 282^2 .

It is a cyclic number.

It is not a de Polignac number, because 56855749 - 2⁹ = 56855237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56855779) 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, 28427874 + 28427875.

It is an arithmetic number, because the mean of its divisors is an integer number (28427875).

Almost surely, 2^56855749 is an apocalyptic number.

It is an amenable number.

56855749 is a deficient number, since it is larger than the sum of its proper divisors (1).

56855749 is an equidigital number, since it uses as much as digits as its factorization.

56855749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 49.

The square root of 56855749 is about 7540.2751276064. The cubic root of 56855749 is about 384.5251896739.

The spelling of 56855749 in words is "fifty-six million, eight hundred fifty-five thousand, seven hundred forty-nine".