33505222 has 8 divisors (see below), whose sum is σ = 51206256. Its totient is φ = 16436472.

The previous prime is 33505211. The next prime is 33505229. The reversal of 33505222 is 22250533.

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

It is a super-2 number, since 2×33505222² = 2245199802538568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33505193 and 33505202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33505229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157938 + ... + 158149.

It is an arithmetic number, because the mean of its divisors is an integer number (6400782).

Almost surely, 2^33505222 is an apocalyptic number.

33505222 is a deficient number, since it is larger than the sum of its proper divisors (17701034).

33505222 is a wasteful number, since it uses less digits than its factorization.

33505222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316142.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 33505222 is about 5788.3695459084. The cubic root of 33505222 is about 322.3820356575.

Adding to 33505222 its reverse (22250533), we get a palindrome (55755755).

The spelling of 33505222 in words is "thirty-three million, five hundred five thousand, two hundred twenty-two".