220005533 has 4 divisors (see below), whose sum is σ = 240006048. Its totient is φ = 200005020.

The previous prime is 220005523. The next prime is 220005547. The reversal of 220005533 is 335500022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220005533 - 2⁶ = 220005469 is a prime.

It is a super-2 number, since 2×220005533² = 96804869101228178, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220005523) 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, 10000241 + ... + 10000262.

It is an arithmetic number, because the mean of its divisors is an integer number (60001512).

Almost surely, 2^220005533 is an apocalyptic number.

It is an amenable number.

220005533 is a deficient number, since it is larger than the sum of its proper divisors (20000515).

220005533 is a wasteful number, since it uses less digits than its factorization.

220005533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20000514.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 220005533 is about 14832.5834904106. The cubic root of 220005533 is about 603.6861344970.

Adding to 220005533 its reverse (335500022), we get a palindrome (555505555).

The spelling of 220005533 in words is "two hundred twenty million, five thousand, five hundred thirty-three".