2647157225 has 6 divisors (see below), whose sum is σ = 3282474990. Its totient is φ = 2117725760.

The previous prime is 2647157221. The next prime is 2647157231. The reversal of 2647157225 is 5227517462.

It can be written as a sum of positive squares in 3 ways, for example, as 163430656 + 2483726569 = 12784^2 + 49837^2 .

It is not a de Polignac number, because 2647157225 - 2² = 2647157221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2647157221) 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 5 ways as a sum of consecutive naturals, for example, 52943120 + ... + 52943169.

It is an arithmetic number, because the mean of its divisors is an integer number (547079165).

Almost surely, 2^2647157225 is an apocalyptic number.

2647157225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2647157225 is a deficient number, since it is larger than the sum of its proper divisors (635317765).

2647157225 is a wasteful number, since it uses less digits than its factorization.

2647157225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105886299 (or 105886294 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 2647157225 is about 51450.5318242679. The cubic root of 2647157225 is about 1383.3324951205.

The spelling of 2647157225 in words is "two billion, six hundred forty-seven million, one hundred fifty-seven thousand, two hundred twenty-five".