555265 has 4 divisors (see below), whose sum is σ = 666324. Its totient is φ = 444208.

The previous prime is 555257. The next prime is 555277. The reversal of 555265 is 562555.

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

It can be written as a sum of positive squares in 2 ways, for example, as 318096 + 237169 = 564^2 + 487^2 .

It is a cyclic number.

It is not a de Polignac number, because 555265 - 2³ = 555257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55522 + ... + 55531.

It is an arithmetic number, because the mean of its divisors is an integer number (166581).

2⁵⁵⁵²⁶⁵ is an apocalyptic number.

It is an amenable number.

555265 is a deficient number, since it is larger than the sum of its proper divisors (111059).

555265 is a wasteful number, since it uses less digits than its factorization.

555265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111058.

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

The square root of 555265 is about 745.1610564167. The cubic root of 555265 is about 82.1927352128.

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

The spelling of 555265 in words is "five hundred fifty-five thousand, two hundred sixty-five".