265555 has 8 divisors (see below), whose sum is σ = 321552. Its totient is φ = 210528.

The previous prime is 265547. The next prime is 265561. The reversal of 265555 is 555562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265555 - 2³ = 265547 is a prime.

It is a Duffinian number.

265555 is a modest number, since divided by 555 gives 265 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (40194).

2²⁶⁵⁵⁵⁵ is an apocalyptic number.

265555 is a deficient number, since it is larger than the sum of its proper divisors (55997).

265555 is a wasteful number, since it uses less digits than its factorization.

265555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its digits is 7500, while the sum is 28.

The square root of 265555 is about 515.3202887525. The cubic root of 265555 is about 64.2763925343.

It can be divided in two parts, 265 and 555, that added together give a triangular number (820 = T₄₀).

The spelling of 265555 in words is "two hundred sixty-five thousand, five hundred fifty-five".