555066220 has 12 divisors (see below), whose sum is σ = 1165639104. Its totient is φ = 222026480.

The previous prime is 555066203. The next prime is 555066227. The reversal of 555066220 is 22660555.

It is not an unprimeable number, because it can be changed into a prime (555066227) 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 3 ways as a sum of consecutive naturals, for example, 13876636 + ... + 13876675.

It is an arithmetic number, because the mean of its divisors is an integer number (97136592).

Almost surely, 2^555066220 is an apocalyptic number.

It is an amenable number.

555066220 is an abundant number, since it is smaller than the sum of its proper divisors (610572884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

555066220 is a wasteful number, since it uses less digits than its factorization.

555066220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27753320 (or 27753318 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 555066220 is about 23559.8433780872. The cubic root of 555066220 is about 821.8292594938.

The spelling of 555066220 in words is "five hundred fifty-five million, sixty-six thousand, two hundred twenty".