2568225197 has 4 divisors (see below), whose sum is σ = 2568510336. Its totient is φ = 2567940060.

The previous prime is 2568225151. The next prime is 2568225203. The reversal of 2568225197 is 7915228652.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2568225197 - 2⁶ = 2568225133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2568225137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128603 + ... + 147224.

It is an arithmetic number, because the mean of its divisors is an integer number (642127584).

Almost surely, 2^2568225197 is an apocalyptic number.

It is an amenable number.

2568225197 is a deficient number, since it is larger than the sum of its proper divisors (285139).

2568225197 is an equidigital number, since it uses as much as digits as its factorization.

2568225197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285138.

The product of its digits is 604800, while the sum is 47.

The square root of 2568225197 is about 50677.6597427308. The cubic root of 2568225197 is about 1369.4442836448. Note that the first 3 decimals are identical.

The spelling of 2568225197 in words is "two billion, five hundred sixty-eight million, two hundred twenty-five thousand, one hundred ninety-seven".