265613225 has 6 divisors (see below), whose sum is σ = 329360430. Its totient is φ = 212490560.

The previous prime is 265613213. The next prime is 265613237. The reversal of 265613225 is 522316562.

It is an interprime number because it is at equal distance from previous prime (265613213) and next prime (265613237).

It can be written as a sum of positive squares in 3 ways, for example, as 32501401 + 233111824 = 5701^2 + 15268^2 .

It is not a de Polignac number, because 265613225 - 2²⁰ = 264564649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 265613191 and 265613200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5312240 + ... + 5312289.

It is an arithmetic number, because the mean of its divisors is an integer number (54893405).

Almost surely, 2^265613225 is an apocalyptic number.

265613225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

265613225 is a deficient number, since it is larger than the sum of its proper divisors (63747205).

265613225 is a wasteful number, since it uses less digits than its factorization.

265613225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10624539 (or 10624534 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 265613225 is about 16297.6447684934. The cubic root of 265613225 is about 642.8108989075.

Adding to 265613225 its reverse (522316562), we get a palindrome (787929787).

The spelling of 265613225 in words is "two hundred sixty-five million, six hundred thirteen thousand, two hundred twenty-five".