222425591 has 2 divisors, whose sum is σ = 222425592. Its totient is φ = 222425590.

The previous prime is 222425587. The next prime is 222425597. The reversal of 222425591 is 195524222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222425591 - 2² = 222425587 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222425597) 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, 111212795 + 111212796.

It is an arithmetic number, because the mean of its divisors is an integer number (111212796).

Almost surely, 2^222425591 is an apocalyptic number.

222425591 is a deficient number, since it is larger than the sum of its proper divisors (1).

222425591 is an equidigital number, since it uses as much as digits as its factorization.

222425591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 32.

The square root of 222425591 is about 14913.9394862659. The cubic root of 222425591 is about 605.8915807375.

The spelling of 222425591 in words is "two hundred twenty-two million, four hundred twenty-five thousand, five hundred ninety-one".