56449091 has 2 divisors, whose sum is σ = 56449092. Its totient is φ = 56449090.

The previous prime is 56449073. The next prime is 56449093. The reversal of 56449091 is 19094465.

56449091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56449091 is a prime.

Together with 56449093, 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 (56449093) 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, 28224545 + 28224546.

It is an arithmetic number, because the mean of its divisors is an integer number (28224546).

Almost surely, 2^56449091 is an apocalyptic number.

56449091 is a deficient number, since it is larger than the sum of its proper divisors (1).

56449091 is an equidigital number, since it uses as much as digits as its factorization.

56449091 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 38.

The square root of 56449091 is about 7513.2610097081. The cubic root of 56449091 is about 383.6062292871.

The spelling of 56449091 in words is "fifty-six million, four hundred forty-nine thousand, ninety-one".