265441005 has 12 divisors (see below), whose sum is σ = 460097820. Its totient is φ = 141568512.

The previous prime is 265440979. The next prime is 265441063. The reversal of 265441005 is 500144562.

265441005 is a `hidden beast` number, since 2 + 654 + 4 + 1 + 0 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 161951076 + 103489929 = 12726^2 + 10173^2 .

It is not a de Polignac number, because 265441005 - 2¹⁰ = 265439981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265441005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2949300 + ... + 2949389.

It is an arithmetic number, because the mean of its divisors is an integer number (38341485).

Almost surely, 2^265441005 is an apocalyptic number.

It is an amenable number.

265441005 is a deficient number, since it is larger than the sum of its proper divisors (194656815).

265441005 is a wasteful number, since it uses less digits than its factorization.

265441005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898700 (or 5898697 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 265441005 is about 16292.3603262388. The cubic root of 265441005 is about 642.6719389239.

Adding to 265441005 its reverse (500144562), we get a palindrome (765585567).

The spelling of 265441005 in words is "two hundred sixty-five million, four hundred forty-one thousand, five".