33352381 has 2 divisors, whose sum is σ = 33352382. Its totient is φ = 33352380.

The previous prime is 33352343. The next prime is 33352387. The reversal of 33352381 is 18325333.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33246756 + 105625 = 5766^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 33352381 - 2¹⁵ = 33319613 is a prime.

It is a super-2 number, since 2×33352381² = 2224762636738322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33352387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16676190 + 16676191.

It is an arithmetic number, because the mean of its divisors is an integer number (16676191).

Almost surely, 2^33352381 is an apocalyptic number.

It is an amenable number.

33352381 is a deficient number, since it is larger than the sum of its proper divisors (1).

33352381 is an equidigital number, since it uses as much as digits as its factorization.

33352381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 28.

The square root of 33352381 is about 5775.1520326308. The cubic root of 33352381 is about 321.8910842624.

It can be divided in two parts, 33352 and 381, that added together give a palindrome (33733).

The spelling of 33352381 in words is "thirty-three million, three hundred fifty-two thousand, three hundred eighty-one".