33490453 has 2 divisors, whose sum is σ = 33490454. Its totient is φ = 33490452.

The previous prime is 33490409. The next prime is 33490463. The reversal of 33490453 is 35409433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31158724 + 2331729 = 5582^2 + 1527^2 .

It is a cyclic number.

It is not a de Polignac number, because 33490453 - 2⁹ = 33489941 is a prime.

It is a super-2 number, since 2×33490453² = 2243220884290418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33490463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16745226 + 16745227.

It is an arithmetic number, because the mean of its divisors is an integer number (16745227).

Almost surely, 2^33490453 is an apocalyptic number.

It is an amenable number.

33490453 is a deficient number, since it is larger than the sum of its proper divisors (1).

33490453 is an equidigital number, since it uses as much as digits as its factorization.

33490453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 33490453 is about 5787.0936574415. The cubic root of 33490453 is about 322.3346603554.

Adding to 33490453 its reverse (35409433), we get a palindrome (68899886).

The spelling of 33490453 in words is "thirty-three million, four hundred ninety thousand, four hundred fifty-three".