33055261 has 4 divisors (see below), whose sum is σ = 33824032. Its totient is φ = 32286492.

The previous prime is 33055213. The next prime is 33055277. The reversal of 33055261 is 16255033.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16255033 = 457 ⋅35569.

It is a cyclic number.

It is not a de Polignac number, because 33055261 - 2⁷ = 33055133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33055291) 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, 384321 + ... + 384406.

It is an arithmetic number, because the mean of its divisors is an integer number (8456008).

Almost surely, 2^33055261 is an apocalyptic number.

It is an amenable number.

33055261 is a deficient number, since it is larger than the sum of its proper divisors (768771).

33055261 is an equidigital number, since it uses as much as digits as its factorization.

33055261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768770.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 33055261 is about 5749.3704872795. The cubic root of 33055261 is about 320.9323751270.

The spelling of 33055261 in words is "thirty-three million, fifty-five thousand, two hundred sixty-one".