265555375 has 8 divisors (see below), whose sum is σ = 331413264. Its totient is φ = 212444200.

The previous prime is 265555373. The next prime is 265555379. The reversal of 265555375 is 573555562.

It is not a de Polignac number, because 265555375 - 2¹ = 265555373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265555373) 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, 1062097 + ... + 1062346.

It is an arithmetic number, because the mean of its divisors is an integer number (41426658).

Almost surely, 2^265555375 is an apocalyptic number.

265555375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

265555375 is a deficient number, since it is larger than the sum of its proper divisors (65857889).

265555375 is an equidigital number, since it uses as much as digits as its factorization.

265555375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124458 (or 2124448 counting only the distinct ones).

The product of its digits is 787500, while the sum is 43.

The square root of 265555375 is about 16295.8698755237. The cubic root of 265555375 is about 642.7642278999.

The spelling of 265555375 in words is "two hundred sixty-five million, five hundred fifty-five thousand, three hundred seventy-five".