265120280 has 16 divisors (see below), whose sum is σ = 596520720. Its totient is φ = 106048096.

The previous prime is 265120267. The next prime is 265120307. The reversal of 265120280 is 82021562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3313964 + ... + 3314043.

It is an arithmetic number, because the mean of its divisors is an integer number (37282545).

Almost surely, 2^265120280 is an apocalyptic number.

265120280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265120280 is an abundant number, since it is smaller than the sum of its proper divisors (331400440).

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

265120280 is a wasteful number, since it uses less digits than its factorization.

265120280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6628018 (or 6628014 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 265120280 is about 16282.5145478209. The cubic root of 265120280 is about 642.4129937142.

The spelling of 265120280 in words is "two hundred sixty-five million, one hundred twenty thousand, two hundred eighty".