33090061 has 2 divisors, whose sum is σ = 33090062. Its totient is φ = 33090060.

The previous prime is 33090059. The next prime is 33090067. The reversal of 33090061 is 16009033.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30858025 + 2232036 = 5555^2 + 1494^2 .

It is an emirp because it is prime and its reverse (16009033) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33090061 - 2¹ = 33090059 is a prime.

Together with 33090059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33090067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16545030 + 16545031.

It is an arithmetic number, because the mean of its divisors is an integer number (16545031).

Almost surely, 2^33090061 is an apocalyptic number.

It is an amenable number.

33090061 is a deficient number, since it is larger than the sum of its proper divisors (1).

33090061 is an equidigital number, since it uses as much as digits as its factorization.

33090061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 33090061 is about 5752.3961094487. The cubic root of 33090061 is about 321.0449596223.

Adding to 33090061 its reverse (16009033), we get a palindrome (49099094).

The spelling of 33090061 in words is "thirty-three million, ninety thousand, sixty-one".