56909449 has 2 divisors, whose sum is σ = 56909450. Its totient is φ = 56909448.

The previous prime is 56909431. The next prime is 56909471. The reversal of 56909449 is 94490965.

56909449 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., 50694400 + 6215049 = 7120^2 + 2493^2 .

It is a cyclic number.

It is not a de Polignac number, because 56909449 - 2⁵ = 56909417 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56909399 and 56909408.

It is not a weakly prime, because it can be changed into another prime (56909249) 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, 28454724 + 28454725.

It is an arithmetic number, because the mean of its divisors is an integer number (28454725).

Almost surely, 2^56909449 is an apocalyptic number.

It is an amenable number.

56909449 is a deficient number, since it is larger than the sum of its proper divisors (1).

56909449 is an equidigital number, since it uses as much as digits as its factorization.

56909449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 56909449 is about 7543.8351652193. The cubic root of 56909449 is about 384.6462123526.

The spelling of 56909449 in words is "fifty-six million, nine hundred nine thousand, four hundred forty-nine".