56900449 has 2 divisors, whose sum is σ = 56900450. Its totient is φ = 56900448.

The previous prime is 56900447. The next prime is 56900539. The reversal of 56900449 is 94400965.

56900449 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., 56896849 + 3600 = 7543^2 + 60^2 .

It is a cyclic number.

It is not a de Polignac number, because 56900449 - 2¹ = 56900447 is a prime.

It is a super-2 number, since 2×56900449² = 6475322192803202, which contains 22 as substring.

Together with 56900447, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56900443) 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, 28450224 + 28450225.

It is an arithmetic number, because the mean of its divisors is an integer number (28450225).

Almost surely, 2^56900449 is an apocalyptic number.

It is an amenable number.

56900449 is a deficient number, since it is larger than the sum of its proper divisors (1).

56900449 is an equidigital number, since it uses as much as digits as its factorization.

56900449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 56900449 is about 7543.2386280695. The cubic root of 56900449 is about 384.6259345342.

The spelling of 56900449 in words is "fifty-six million, nine hundred thousand, four hundred forty-nine".