33252403 has 4 divisors (see below), whose sum is σ = 33397840. Its totient is φ = 33106968.

The previous prime is 33252389. The next prime is 33252407. The reversal of 33252403 is 30425233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30425233 = 53 ⋅574061.

It is a cyclic number.

It is not a de Polignac number, because 33252403 - 2¹⁷ = 33121331 is a prime.

It is a super-2 number, since 2×33252403² = 2211444610548818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33252407) 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, 72375 + ... + 72832.

It is an arithmetic number, because the mean of its divisors is an integer number (8349460).

Almost surely, 2^33252403 is an apocalyptic number.

33252403 is a deficient number, since it is larger than the sum of its proper divisors (145437).

33252403 is a wasteful number, since it uses less digits than its factorization.

33252403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145436.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 33252403 is about 5766.4896600965. The cubic root of 33252403 is about 321.5691258685.

Adding to 33252403 its reverse (30425233), we get a palindrome (63677636).

The spelling of 33252403 in words is "thirty-three million, two hundred fifty-two thousand, four hundred three".