33990053 has 2 divisors, whose sum is σ = 33990054. Its totient is φ = 33990052.

The previous prime is 33990037. The next prime is 33990083. The reversal of 33990053 is 35009933.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17032129 + 16957924 = 4127^2 + 4118^2 .

It is a cyclic number.

It is not a de Polignac number, because 33990053 - 2⁴ = 33990037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33990083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16995026 + 16995027.

It is an arithmetic number, because the mean of its divisors is an integer number (16995027).

Almost surely, 2^33990053 is an apocalyptic number.

It is an amenable number.

33990053 is a deficient number, since it is larger than the sum of its proper divisors (1).

33990053 is an equidigital number, since it uses as much as digits as its factorization.

33990053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10935, while the sum is 32.

The square root of 33990053 is about 5830.0988842386. The cubic root of 33990053 is about 323.9295844791.

Adding to 33990053 its reverse (35009933), we get a palindrome (68999986).

The spelling of 33990053 in words is "thirty-three million, nine hundred ninety thousand, fifty-three".