220055345 has 8 divisors (see below), whose sum is σ = 264205800. Its totient is φ = 175951360.

The previous prime is 220055287. The next prime is 220055347. The reversal of 220055345 is 543550022.

It can be written as a sum of positive squares in 4 ways, for example, as 185761 + 219869584 = 431^2 + 14828^2 .

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

It is not a de Polignac number, because 220055345 - 2¹⁸ = 219793201 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220055347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 20979.

It is an arithmetic number, because the mean of its divisors is an integer number (33025725).

Almost surely, 2^220055345 is an apocalyptic number.

It is an amenable number.

220055345 is a deficient number, since it is larger than the sum of its proper divisors (44150455).

220055345 is a wasteful number, since it uses less digits than its factorization.

220055345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23235.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 220055345 is about 14834.2625364391. The cubic root of 220055345 is about 603.7316917521.

The spelling of 220055345 in words is "two hundred twenty million, fifty-five thousand, three hundred forty-five".