183220056 has 72 divisors (see below), whose sum is σ = 516281220. Its totient is φ = 60874416.

The previous prime is 183220049. The next prime is 183220109. The reversal of 183220056 is 650022381.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 596655 + ... + 596961.

Almost surely, 2^183220056 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 183220056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258140610).

183220056 is an abundant number, since it is smaller than the sum of its proper divisors (333061164).

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

183220056 is an frugal number, since it uses more digits than its factorization.

183220056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 183220056 is about 13535.8803186198. The cubic root of 183220056 is about 567.9686139504.

The spelling of 183220056 in words is "one hundred eighty-three million, two hundred twenty thousand, fifty-six".