2225350991 has 2 divisors, whose sum is σ = 2225350992. Its totient is φ = 2225350990.

The previous prime is 2225350987. The next prime is 2225350997. The reversal of 2225350991 is 1990535222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2225350991 - 2² = 2225350987 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2225350997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112675495 + 1112675496.

It is an arithmetic number, because the mean of its divisors is an integer number (1112675496).

Almost surely, 2^2225350991 is an apocalyptic number.

2225350991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2225350991 is an equidigital number, since it uses as much as digits as its factorization.

2225350991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 2225350991 is about 47173.6260107276. The cubic root of 2225350991 is about 1305.5680289710.

The spelling of 2225350991 in words is "two billion, two hundred twenty-five million, three hundred fifty thousand, nine hundred ninety-one".