33240553 has 2 divisors, whose sum is σ = 33240554. Its totient is φ = 33240552.

The previous prime is 33240551. The next prime is 33240563. The reversal of 33240553 is 35504233.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29192409 + 4048144 = 5403^2 + 2012^2 .

It is an emirp because it is prime and its reverse (35504233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33240553 - 2¹ = 33240551 is a prime.

It is a super-2 number, since 2×33240553² = 2209868727491618, which contains 22 as substring.

Together with 33240551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (33240551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16620276 + 16620277.

It is an arithmetic number, because the mean of its divisors is an integer number (16620277).

Almost surely, 2^33240553 is an apocalyptic number.

It is an amenable number.

33240553 is a deficient number, since it is larger than the sum of its proper divisors (1).

33240553 is an equidigital number, since it uses as much as digits as its factorization.

33240553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 25.

The square root of 33240553 is about 5765.4620803540. The cubic root of 33240553 is about 321.5309226457.

Adding to 33240553 its reverse (35504233), we get a palindrome (68744786).

The spelling of 33240553 in words is "thirty-three million, two hundred forty thousand, five hundred fifty-three".