33420061 has 2 divisors, whose sum is σ = 33420062. Its totient is φ = 33420060.

The previous prime is 33420047. The next prime is 33420067. The reversal of 33420061 is 16002433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33419961 + 100 = 5781^2 + 10^2 .

It is an emirp because it is prime and its reverse (16002433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33420061 - 2⁷ = 33419933 is a prime.

It is a super-2 number, since 2×33420061² = 2233800954487442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33420067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710030 + 16710031.

It is an arithmetic number, because the mean of its divisors is an integer number (16710031).

Almost surely, 2^33420061 is an apocalyptic number.

It is an amenable number.

33420061 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420061 is an equidigital number, since it uses as much as digits as its factorization.

33420061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 33420061 is about 5781.0086490162. The cubic root of 33420061 is about 322.1086686192.

Adding to 33420061 its reverse (16002433), we get a palindrome (49422494).

The spelling of 33420061 in words is "thirty-three million, four hundred twenty thousand, sixty-one".