55846809 has 12 divisors (see below), whose sum is σ = 82544176. Its totient is φ = 36365112.

The previous prime is 55846807. The next prime is 55846811. The reversal of 55846809 is 90864855.

55846809 is a `hidden beast` number, since 5 + 584 + 68 + 0 + 9 = 666.

55846809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55846807) and next prime (55846811).

It is not a de Polignac number, because 55846809 - 2¹ = 55846807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55846807) 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 in 11 ways as a sum of consecutive naturals, for example, 71767 + ... + 72540.

Almost surely, 2^55846809 is an apocalyptic number.

It is an amenable number.

55846809 is a deficient number, since it is larger than the sum of its proper divisors (26697367).

55846809 is a wasteful number, since it uses less digits than its factorization.

55846809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144356 (or 144353 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 55846809 is about 7473.0722597871. The cubic root of 55846809 is about 382.2370562449.

The spelling of 55846809 in words is "fifty-five million, eight hundred forty-six thousand, eight hundred nine".