33050389 has 4 divisors (see below), whose sum is σ = 33064524. Its totient is φ = 33036256.

The previous prime is 33050341. The next prime is 33050393. The reversal of 33050389 is 98305033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17918289 + 15132100 = 4233^2 + 3890^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33050389 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 33050389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33050189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2632 + ... + 8545.

It is an arithmetic number, because the mean of its divisors is an integer number (8266131).

Almost surely, 2^33050389 is an apocalyptic number.

It is an amenable number.

33050389 is a deficient number, since it is larger than the sum of its proper divisors (14135).

33050389 is a wasteful number, since it uses less digits than its factorization.

33050389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14134.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 33050389 is about 5748.9467731055. The cubic root of 33050389 is about 320.9166069930.

The spelling of 33050389 in words is "thirty-three million, fifty thousand, three hundred eighty-nine".