2245645253 has 2 divisors, whose sum is σ = 2245645254. Its totient is φ = 2245645252.

The previous prime is 2245645249. The next prime is 2245645267. The reversal of 2245645253 is 3525465422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1888510849 + 357134404 = 43457^2 + 18898^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245645253 - 2² = 2245645249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2245645223) 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, 1122822626 + 1122822627.

It is an arithmetic number, because the mean of its divisors is an integer number (1122822627).

Almost surely, 2^2245645253 is an apocalyptic number.

It is an amenable number.

2245645253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245645253 is an equidigital number, since it uses as much as digits as its factorization.

2245645253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288000, while the sum is 38.

The square root of 2245645253 is about 47388.2396064678. The cubic root of 2245645253 is about 1309.5247684743.

The spelling of 2245645253 in words is "two billion, two hundred forty-five million, six hundred forty-five thousand, two hundred fifty-three".