2568215243 has 8 divisors (see below), whose sum is σ = 2892066816. Its totient is φ = 2259426600.

The previous prime is 2568215231. The next prime is 2568215249. The reversal of 2568215243 is 3425128652.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2568215243 - 2¹² = 2568211147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2568215197 and 2568215206.

It is not an unprimeable number, because it can be changed into a prime (2568215249) 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 in 7 ways as a sum of consecutive naturals, for example, 3765371 + ... + 3766052.

It is an arithmetic number, because the mean of its divisors is an integer number (361508352).

Almost surely, 2^2568215243 is an apocalyptic number.

2568215243 is a deficient number, since it is larger than the sum of its proper divisors (323851573).

2568215243 is a wasteful number, since it uses less digits than its factorization.

2568215243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7531465.

The product of its digits is 115200, while the sum is 38.

The square root of 2568215243 is about 50677.5615336808. The cubic root of 2568215243 is about 1369.4425143988.

The spelling of 2568215243 in words is "two billion, five hundred sixty-eight million, two hundred fifteen thousand, two hundred forty-three".