545554220 has 24 divisors (see below), whose sum is σ = 1205962800. Its totient is φ = 206736192.

The previous prime is 545554193. The next prime is 545554223. The reversal of 545554220 is 22455545.

It is not an unprimeable number, because it can be changed into a prime (545554223) 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, 717455 + ... + 718214.

It is an arithmetic number, because the mean of its divisors is an integer number (50248450).

Almost surely, 2^545554220 is an apocalyptic number.

It is an amenable number.

545554220 is an abundant number, since it is smaller than the sum of its proper divisors (660408580).

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

545554220 is a wasteful number, since it uses less digits than its factorization.

545554220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435697 (or 1435695 counting only the distinct ones).

The product of its (nonzero) digits is 40000, while the sum is 32.

The square root of 545554220 is about 23357.1021318998. The cubic root of 545554220 is about 817.1077064269.

The spelling of 545554220 in words is "five hundred forty-five million, five hundred fifty-four thousand, two hundred twenty".