2791297225 has 12 divisors (see below), whose sum is σ = 3486113680. Its totient is φ = 2216970000.

The previous prime is 2791297213. The next prime is 2791297237. The reversal of 2791297225 is 5227921972.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2791297213) and next prime (2791297237).

It is not a de Polignac number, because 2791297225 - 2¹⁹ = 2790772937 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 398151 + ... + 405100.

Almost surely, 2^2791297225 is an apocalyptic number.

2791297225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2791297225 is a deficient number, since it is larger than the sum of its proper divisors (694816455).

2791297225 is a wasteful number, since it uses less digits than its factorization.

2791297225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803400 (or 803395 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 2791297225 is about 52832.7287294533. The cubic root of 2791297225 is about 1407.9979676777.

The spelling of 2791297225 in words is "two billion, seven hundred ninety-one million, two hundred ninety-seven thousand, two hundred twenty-five".