220505554 has 8 divisors (see below), whose sum is σ = 345139200. Its totient is φ = 105459156.

The previous prime is 220505543. The next prime is 220505557. The reversal of 220505554 is 455505022.

220505554 is digitally balanced in base 3, 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 not an unprimeable number, because it can be changed into a prime (220505557) 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, 2396754 + ... + 2396845.

It is an arithmetic number, because the mean of its divisors is an integer number (43142400).

Almost surely, 2^220505554 is an apocalyptic number.

220505554 is a deficient number, since it is larger than the sum of its proper divisors (124633646).

220505554 is a wasteful number, since it uses less digits than its factorization.

220505554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793624.

The product of its (nonzero) digits is 10000, while the sum is 28.

The square root of 220505554 is about 14849.4294166476. The cubic root of 220505554 is about 604.1431341406.

The spelling of 220505554 in words is "two hundred twenty million, five hundred five thousand, five hundred fifty-four".