33225251 has 2 divisors, whose sum is σ = 33225252. Its totient is φ = 33225250.

The previous prime is 33225229. The next prime is 33225253. The reversal of 33225251 is 15252233.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33225251 - 2¹⁴ = 33208867 is a prime.

It is a super-2 number, since 2×33225251² = 2207834608026002, which contains 22 as substring.

Together with 33225253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (33225253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16612625 + 16612626.

It is an arithmetic number, because the mean of its divisors is an integer number (16612626).

Almost surely, 2^33225251 is an apocalyptic number.

33225251 is a deficient number, since it is larger than the sum of its proper divisors (1).

33225251 is an equidigital number, since it uses as much as digits as its factorization.

33225251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 23.

The square root of 33225251 is about 5764.1348873877. The cubic root of 33225251 is about 321.4815770834.

Adding to 33225251 its reverse (15252233), we get a palindrome (48477484).

The spelling of 33225251 in words is "thirty-three million, two hundred twenty-five thousand, two hundred fifty-one".