265020205 has 16 divisors (see below), whose sum is σ = 321729408. Its totient is φ = 209560000.

The previous prime is 265020179. The next prime is 265020221. The reversal of 265020205 is 502020562.

It is not a de Polignac number, because 265020205 - 2⁹ = 265019693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203055 + ... + 204355.

It is an arithmetic number, because the mean of its divisors is an integer number (20108088).

Almost surely, 2^265020205 is an apocalyptic number.

It is an amenable number.

265020205 is a deficient number, since it is larger than the sum of its proper divisors (56709203).

265020205 is a wasteful number, since it uses less digits than its factorization.

265020205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 265020205 is about 16279.4411759126. The cubic root of 265020205 is about 642.3321529588.

Adding to 265020205 its reverse (502020562), we get a palindrome (767040767).

It can be divided in two parts, 265020 and 205, that added together give a square (265225 = 515²).

The spelling of 265020205 in words is "two hundred sixty-five million, twenty thousand, two hundred five".