56807449 has 2 divisors, whose sum is σ = 56807450. Its totient is φ = 56807448.

The previous prime is 56807417. The next prime is 56807459. The reversal of 56807449 is 94470865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56550400 + 257049 = 7520^2 + 507^2 .

It is a cyclic number.

It is not a de Polignac number, because 56807449 - 2⁵ = 56807417 is a prime.

It is not a weakly prime, because it can be changed into another prime (56807459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28403724 + 28403725.

It is an arithmetic number, because the mean of its divisors is an integer number (28403725).

Almost surely, 2^56807449 is an apocalyptic number.

It is an amenable number.

56807449 is a deficient number, since it is larger than the sum of its proper divisors (1).

56807449 is an equidigital number, since it uses as much as digits as its factorization.

56807449 is an odious number, because the sum of its binary digits is odd.

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

The square root of 56807449 is about 7537.0716462032. The cubic root of 56807449 is about 384.4162717620.

The spelling of 56807449 in words is "fifty-six million, eight hundred seven thousand, four hundred forty-nine".