2565313225 has 6 divisors (see below), whose sum is σ = 3180988430. Its totient is φ = 2052250560.

The previous prime is 2565313217. The next prime is 2565313229. The reversal of 2565313225 is 5223135652.

2565313225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 38340864 + 2526972361 = 6192^2 + 50269^2 .

It is not a de Polignac number, because 2565313225 - 2³ = 2565313217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2565313229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51306240 + ... + 51306289.

Almost surely, 2^2565313225 is an apocalyptic number.

2565313225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2565313225 is a deficient number, since it is larger than the sum of its proper divisors (615675205).

2565313225 is a wasteful number, since it uses less digits than its factorization.

2565313225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102612539 (or 102612534 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The square root of 2565313225 is about 50648.9212619578. The cubic root of 2565313225 is about 1368.9265082381.

Adding to 2565313225 its reverse (5223135652), we get a palindrome (7788448877).

The spelling of 2565313225 in words is "two billion, five hundred sixty-five million, three hundred thirteen thousand, two hundred twenty-five".