55933009 has 8 divisors (see below), whose sum is σ = 64607328. Its totient is φ = 47856960.

The previous prime is 55933001. The next prime is 55933037. The reversal of 55933009 is 90033955.

It is a happy number.

55933009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55933009 - 2³ = 55933001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55933001) 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 7 ways as a sum of consecutive naturals, for example, 149367 + ... + 149740.

It is an arithmetic number, because the mean of its divisors is an integer number (8075916).

Almost surely, 2^55933009 is an apocalyptic number.

It is an amenable number.

55933009 is a deficient number, since it is larger than the sum of its proper divisors (8674319).

55933009 is a wasteful number, since it uses less digits than its factorization.

55933009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299135.

The product of its (nonzero) digits is 18225, while the sum is 34.

The square root of 55933009 is about 7478.8374096513. The cubic root of 55933009 is about 382.4336171413.

The spelling of 55933009 in words is "fifty-five million, nine hundred thirty-three thousand, nine".