220605056 has 96 divisors (see below), whose sum is σ = 541574100. Its totient is φ = 88940544.

The previous prime is 220605053. The next prime is 220605103. The reversal of 220605056 is 650506022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 220225600 + 379456 = 14840^2 + 616^2 .

It is not an unprimeable number, because it can be changed into a prime (220605053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105590 + ... + 107658.

Almost surely, 2^220605056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220605056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270787050).

220605056 is an abundant number, since it is smaller than the sum of its proper divisors (320969044).

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

220605056 is a wasteful number, since it uses less digits than its factorization.

220605056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114 (or 2095 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 220605056 is about 14852.7794031959. The cubic root of 220605056 is about 604.2339926388.

The spelling of 220605056 in words is "two hundred twenty million, six hundred five thousand, fifty-six".