265155220 has 24 divisors (see below), whose sum is σ = 607447008. Its totient is φ = 96420000.

The previous prime is 265155217. The next prime is 265155229. The reversal of 265155220 is 22551562.

265155220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265155229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602406 + ... + 602845.

It is an arithmetic number, because the mean of its divisors is an integer number (25310292).

Almost surely, 2^265155220 is an apocalyptic number.

265155220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265155220 is an abundant number, since it is smaller than the sum of its proper divisors (342291788).

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

265155220 is a wasteful number, since it uses less digits than its factorization.

265155220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205271 (or 1205269 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 265155220 is about 16283.5874425754. The cubic root of 265155220 is about 642.4412135145.

The spelling of 265155220 in words is "two hundred sixty-five million, one hundred fifty-five thousand, two hundred twenty".