265642055 has 16 divisors (see below), whose sum is σ = 374157120. Its totient is φ = 177230592.

The previous prime is 265641997. The next prime is 265642087. The reversal of 265642055 is 550246562.

It is not a de Polignac number, because 265642055 - 2⁶ = 265641991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 101270 + ... + 103859.

It is an arithmetic number, because the mean of its divisors is an integer number (23384820).

Almost surely, 2^265642055 is an apocalyptic number.

265642055 is a deficient number, since it is larger than the sum of its proper divisors (108515065).

265642055 is a wasteful number, since it uses less digits than its factorization.

265642055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205178.

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 265642055 is about 16298.5292281236. The cubic root of 265642055 is about 642.8341552391.

The spelling of 265642055 in words is "two hundred sixty-five million, six hundred forty-two thousand, fifty-five".