265545 has 32 divisors (see below), whose sum is σ = 541440. Its totient is φ = 120960.

The previous prime is 265543. The next prime is 265547. The reversal of 265545 is 545562.

265545 is a `hidden beast` number, since 2 + 655 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (265543) and next prime (265547).

It is not a de Polignac number, because 265545 - 2¹ = 265543 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (265541) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 805 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (16920).

2²⁶⁵⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

265545 is an abundant number, since it is smaller than the sum of its proper divisors (275895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

265545 is a wasteful number, since it uses less digits than its factorization.

265545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 296 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 265545 is about 515.3105859576. The cubic root of 265545 is about 64.2755857059.

The spelling of 265545 in words is "two hundred sixty-five thousand, five hundred forty-five".