56243449 has 2 divisors, whose sum is σ = 56243450. Its totient is φ = 56243448.

The previous prime is 56243437. The next prime is 56243471. The reversal of 56243449 is 94434265.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34012224 + 22231225 = 5832^2 + 4715^2 .

It is a cyclic number.

It is not a de Polignac number, because 56243449 - 2¹⁵ = 56210681 is a prime.

It is not a weakly prime, because it can be changed into another prime (56243419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28121724 + 28121725.

It is an arithmetic number, because the mean of its divisors is an integer number (28121725).

Almost surely, 2^56243449 is an apocalyptic number.

It is an amenable number.

56243449 is a deficient number, since it is larger than the sum of its proper divisors (1).

56243449 is an equidigital number, since it uses as much as digits as its factorization.

56243449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 56243449 is about 7499.5632539502. The cubic root of 56243449 is about 383.1398412694.

The spelling of 56243449 in words is "fifty-six million, two hundred forty-three thousand, four hundred forty-nine".