265983555055 has 8 divisors (see below), whose sum is σ = 320834050992. Its totient is φ = 211684320768.

The previous prime is 265983555037. The next prime is 265983555067. The reversal of 265983555055 is 550555389562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 265983555055 - 2⁵ = 265983555023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137814349 + ... + 137816278.

It is an arithmetic number, because the mean of its divisors is an integer number (40104256374).

Almost surely, 2^265983555055 is an apocalyptic number.

265983555055 is a deficient number, since it is larger than the sum of its proper divisors (54850495937).

265983555055 is a wasteful number, since it uses less digits than its factorization.

265983555055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275630825.

The product of its (nonzero) digits is 40500000, while the sum is 58.

The spelling of 265983555055 in words is "two hundred sixty-five billion, nine hundred eighty-three million, five hundred fifty-five thousand, fifty-five".