33242513 has 8 divisors (see below), whose sum is σ = 34237896. Its totient is φ = 32256000.

The previous prime is 33242507. The next prime is 33242549. The reversal of 33242513 is 31524233.

It can be written as a sum of positive squares in 4 ways, for example, as 2849344 + 30393169 = 1688^2 + 5513^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33242513 - 2⁶ = 33242449 is a prime.

It is a super-2 number, since 2×33242513² = 2210129341110338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33242593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5813 + ... + 10013.

It is an arithmetic number, because the mean of its divisors is an integer number (4279737).

Almost surely, 2^33242513 is an apocalyptic number.

It is an amenable number.

33242513 is a deficient number, since it is larger than the sum of its proper divisors (995383).

33242513 is a wasteful number, since it uses less digits than its factorization.

33242513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4435.

The product of its digits is 2160, while the sum is 23.

The square root of 33242513 is about 5765.6320555512. The cubic root of 33242513 is about 321.5372421176.

Adding to 33242513 its reverse (31524233), we get a palindrome (64766746).

The spelling of 33242513 in words is "thirty-three million, two hundred forty-two thousand, five hundred thirteen".