2265220361 has 2 divisors, whose sum is σ = 2265220362. Its totient is φ = 2265220360.

The previous prime is 2265220351. The next prime is 2265220367. The reversal of 2265220361 is 1630225622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1470262336 + 794958025 = 38344^2 + 28195^2 .

It is a cyclic number.

It is not a de Polignac number, because 2265220361 - 2¹⁴ = 2265203977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2265220367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1132610180 + 1132610181.

It is an arithmetic number, because the mean of its divisors is an integer number (1132610181).

Almost surely, 2^2265220361 is an apocalyptic number.

It is an amenable number.

2265220361 is a deficient number, since it is larger than the sum of its proper divisors (1).

2265220361 is an equidigital number, since it uses as much as digits as its factorization.

2265220361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2265220361 is about 47594.3311855519. The cubic root of 2265220361 is about 1313.3187728823.

Adding to 2265220361 its reverse (1630225622), we get a palindrome (3895445983).

The spelling of 2265220361 in words is "two billion, two hundred sixty-five million, two hundred twenty thousand, three hundred sixty-one".