509556055 has 8 divisors (see below), whose sum is σ = 611728992. Its totient is φ = 407470368.

The previous prime is 509556031. The next prime is 509556059. The reversal of 509556055 is 550655905.

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 509556055 - 2⁵ = 509556023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 509555999 and 509556017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509556059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8187 + ... + 32956.

It is an arithmetic number, because the mean of its divisors is an integer number (76466124).

Almost surely, 2^509556055 is an apocalyptic number.

509556055 is a deficient number, since it is larger than the sum of its proper divisors (102172937).

509556055 is a wasteful number, since it uses less digits than its factorization.

509556055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43625.

The product of its (nonzero) digits is 168750, while the sum is 40.

The square root of 509556055 is about 22573.3483338206. The cubic root of 509556055 is about 798.7250812863.

The spelling of 509556055 in words is "five hundred nine million, five hundred fifty-six thousand, fifty-five".