4253397809 has 2 divisors, whose sum is σ = 4253397810. Its totient is φ = 4253397808.

The previous prime is 4253397803. The next prime is 4253397829. The reversal of 4253397809 is 9087933524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3668967184 + 584430625 = 60572^2 + 24175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4253397809 is a prime.

It is not a weakly prime, because it can be changed into another prime (4253397803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2126698904 + 2126698905.

It is an arithmetic number, because the mean of its divisors is an integer number (2126698905).

Almost surely, 2^4253397809 is an apocalyptic number.

It is an amenable number.

4253397809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4253397809 is an equidigital number, since it uses as much as digits as its factorization.

4253397809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 4253397809 is about 65218.0788508831. The cubic root of 4253397809 is about 1620.2374555397.

The spelling of 4253397809 in words is "four billion, two hundred fifty-three million, three hundred ninety-seven thousand, eight hundred nine".