33050905 has 4 divisors (see below), whose sum is σ = 39661092. Its totient is φ = 26440720.

The previous prime is 33050893. The next prime is 33050921. The reversal of 33050905 is 50905033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50905033 = 751 ⋅67783.

It can be written as a sum of positive squares in 2 ways, for example, as 5456896 + 27594009 = 2336^2 + 5253^2 .

It is not a de Polignac number, because 33050905 - 2⁷ = 33050777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33050905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3305086 + ... + 3305095.

It is an arithmetic number, because the mean of its divisors is an integer number (9915273).

Almost surely, 2^33050905 is an apocalyptic number.

It is an amenable number.

33050905 is a deficient number, since it is larger than the sum of its proper divisors (6610187).

33050905 is an equidigital number, since it uses as much as digits as its factorization.

33050905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610186.

The product of its (nonzero) digits is 2025, while the sum is 25.

The square root of 33050905 is about 5748.9916507158. The cubic root of 33050905 is about 320.9182770904.

Adding to 33050905 its reverse (50905033), we get a palindrome (83955938).

The spelling of 33050905 in words is "thirty-three million, fifty thousand, nine hundred five".