33820055 has 16 divisors (see below), whose sum is σ = 43252704. Its totient is φ = 25297920.

The previous prime is 33820043. The next prime is 33820063. The reversal of 33820055 is 55002833.

It is not a de Polignac number, because 33820055 - 2¹⁸ = 33557911 is a prime.

It is a super-2 number, since 2×33820055² = 2287592240406050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12635 + ... + 15075.

It is an arithmetic number, because the mean of its divisors is an integer number (2703294).

Almost surely, 2^33820055 is an apocalyptic number.

33820055 is a deficient number, since it is larger than the sum of its proper divisors (9432649).

33820055 is a wasteful number, since it uses less digits than its factorization.

33820055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626.

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

The square root of 33820055 is about 5815.5012681625. The cubic root of 33820055 is about 323.3886473782.

Adding to 33820055 its reverse (55002833), we get a palindrome (88822888).

The spelling of 33820055 in words is "thirty-three million, eight hundred twenty thousand, fifty-five".