33225779 has 2 divisors, whose sum is σ = 33225780. Its totient is φ = 33225778.

The previous prime is 33225767. The next prime is 33225781. The reversal of 33225779 is 97752233.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (97752233) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33225779 is a prime.

It is a super-2 number, since 2×33225779² = 2207904780313682, which contains 22 as substring.

Together with 33225781, 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 (33225719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16612889 + 16612890.

It is an arithmetic number, because the mean of its divisors is an integer number (16612890).

Almost surely, 2^33225779 is an apocalyptic number.

33225779 is a deficient number, since it is larger than the sum of its proper divisors (1).

33225779 is an equidigital number, since it uses as much as digits as its factorization.

33225779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79380, while the sum is 38.

The square root of 33225779 is about 5764.1806876606. The cubic root of 33225779 is about 321.4832800188.

The spelling of 33225779 in words is "thirty-three million, two hundred twenty-five thousand, seven hundred seventy-nine".