265726 has 4 divisors (see below), whose sum is σ = 398592. Its totient is φ = 132862.

The previous prime is 265717. The next prime is 265729. The reversal of 265726 is 627562.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×265726² = 141220614152, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 6⁵ + 7² + 5⁷ + 2¹⁷ + 6⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 265694 and 265703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66430 + ... + 66433.

It is an arithmetic number, because the mean of its divisors is an integer number (99648).

265726 is a Friedman number, since it can be written as (6+5+(7+2)^6)/2, using all its digits and the basic arithmetic operations.

2²⁶⁵⁷²⁶ is an apocalyptic number.

265726 is a deficient number, since it is larger than the sum of its proper divisors (132866).

265726 is a wasteful number, since it uses less digits than its factorization.

265726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132865.

The product of its digits is 5040, while the sum is 28.

The square root of 265726 is about 515.4861782822. The cubic root of 265726 is about 64.2901861675.

The spelling of 265726 in words is "two hundred sixty-five thousand, seven hundred twenty-six".