225334819 has 2 divisors, whose sum is σ = 225334820. Its totient is φ = 225334818.

The previous prime is 225334817. The next prime is 225334861. The reversal of 225334819 is 918433522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 225334819 - 2¹ = 225334817 is a prime.

It is a super-2 number, since 2×225334819² = 101551561307525522, which contains 22 as substring.

Together with 225334817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (225334817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112667409 + 112667410.

It is an arithmetic number, because the mean of its divisors is an integer number (112667410).

Almost surely, 2^225334819 is an apocalyptic number.

225334819 is a deficient number, since it is larger than the sum of its proper divisors (1).

225334819 is an equidigital number, since it uses as much as digits as its factorization.

225334819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 37.

The square root of 225334819 is about 15011.1564844285. The cubic root of 225334819 is about 608.5217443713.

The spelling of 225334819 in words is "two hundred twenty-five million, three hundred thirty-four thousand, eight hundred nineteen".