33663061 has 4 divisors (see below), whose sum is σ = 33682572. Its totient is φ = 33643552.

The previous prime is 33663059. The next prime is 33663067. The reversal of 33663061 is 16036633.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16036633 = 211 ⋅76003.

It can be written as a sum of positive squares in 2 ways, for example, as 13359025 + 20304036 = 3655^2 + 4506^2 .

It is a cyclic number.

It is not a de Polignac number, because 33663061 - 2¹ = 33663059 is a prime.

It is a super-3 number, since 3×33663061³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33663067) 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, 6886 + ... + 10711.

It is an arithmetic number, because the mean of its divisors is an integer number (8420643).

Almost surely, 2^33663061 is an apocalyptic number.

It is an amenable number.

33663061 is a deficient number, since it is larger than the sum of its proper divisors (19511).

33663061 is a wasteful number, since it uses less digits than its factorization.

33663061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19510.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 33663061 is about 5801.9876766501. The cubic root of 33663061 is about 322.8874768999.

Adding to 33663061 its reverse (16036633), we get a palindrome (49699694).

The spelling of 33663061 in words is "thirty-three million, six hundred sixty-three thousand, sixty-one".