56847229 has 2 divisors, whose sum is σ = 56847230. Its totient is φ = 56847228.

The previous prime is 56847227. The next prime is 56847251. The reversal of 56847229 is 92274865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43692100 + 13155129 = 6610^2 + 3627^2 .

It is a cyclic number.

It is not a de Polignac number, because 56847229 - 2¹ = 56847227 is a prime.

Together with 56847227, 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 (56847227) 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, 28423614 + 28423615.

It is an arithmetic number, because the mean of its divisors is an integer number (28423615).

Almost surely, 2^56847229 is an apocalyptic number.

It is an amenable number.

56847229 is a deficient number, since it is larger than the sum of its proper divisors (1).

56847229 is an equidigital number, since it uses as much as digits as its factorization.

56847229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 43.

The square root of 56847229 is about 7539.7101403171. The cubic root of 56847229 is about 384.5059813069.

The spelling of 56847229 in words is "fifty-six million, eight hundred forty-seven thousand, two hundred twenty-nine".