33220055 has 8 divisors (see below), whose sum is σ = 43488144. Its totient is φ = 24160000.

The previous prime is 33220049. The next prime is 33220067. The reversal of 33220055 is 55002233.

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

It is not a de Polignac number, because 33220055 - 2¹⁰ = 33219031 is a prime.

It is a super-2 number, since 2×33220055² = 2207144108406050, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301946 + ... + 302055.

It is an arithmetic number, because the mean of its divisors is an integer number (5436018).

Almost surely, 2^33220055 is an apocalyptic number.

33220055 is a deficient number, since it is larger than the sum of its proper divisors (10268089).

33220055 is a wasteful number, since it uses less digits than its factorization.

33220055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604017.

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

The square root of 33220055 is about 5763.6841516516. The cubic root of 33220055 is about 321.4648176879.

Adding to 33220055 its reverse (55002233), we get a palindrome (88222288).

The spelling of 33220055 in words is "thirty-three million, two hundred twenty thousand, fifty-five".