6305057213 has 20 divisors (see below), whose sum is σ = 7921306428. Its totient is φ = 4988592000.

The previous prime is 6305057207. The next prime is 6305057237. The reversal of 6305057213 is 3127505036.

It can be written as a sum of positive squares in 2 ways, for example, as 4101505849 + 2203551364 = 64043^2 + 46942^2 .

It is not a de Polignac number, because 6305057213 - 2⁴ = 6305057197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6305057213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6305057263) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 69788 + ... + 132213.

Almost surely, 2^6305057213 is an apocalyptic number.

It is an amenable number.

6305057213 is a deficient number, since it is larger than the sum of its proper divisors (1616249215).

6305057213 is an equidigital number, since it uses as much as digits as its factorization.

6305057213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202042 (or 202021 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 6305057213 is about 79404.3903886932. The cubic root of 6305057213 is about 1847.4088109326.

The spelling of 6305057213 in words is "six billion, three hundred five million, fifty-seven thousand, two hundred thirteen".