265613 has 2 divisors, whose sum is σ = 265614. Its totient is φ = 265612.

The previous prime is 265607. The next prime is 265619. The reversal of 265613 is 316562.

It is a balanced prime because it is at equal distance from previous prime (265607) and next prime (265619).

It can be written as a sum of positive squares in only one way, i.e., 218089 + 47524 = 467^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 265613 - 2¹⁴ = 249229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132806 + 132807.

It is an arithmetic number, because the mean of its divisors is an integer number (132807).

2²⁶⁵⁶¹³ is an apocalyptic number.

It is an amenable number.

265613 is a deficient number, since it is larger than the sum of its proper divisors (1).

265613 is an equidigital number, since it uses as much as digits as its factorization.

265613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 265613 is about 515.3765613607. The cubic root of 265613 is about 64.2810717400.

It can be divided in two parts, 265 and 613, that added together give a palindrome (878).

The spelling of 265613 in words is "two hundred sixty-five thousand, six hundred thirteen".