265505423 has 8 divisors (see below), whose sum is σ = 272276640. Its totient is φ = 258818560.

The previous prime is 265505419. The next prime is 265505441. The reversal of 265505423 is 324505562.

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 265505423 - 2² = 265505419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 265505423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265505323) 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, 14690 + ... + 27327.

It is an arithmetic number, because the mean of its divisors is an integer number (34034580).

Almost surely, 2^265505423 is an apocalyptic number.

265505423 is a deficient number, since it is larger than the sum of its proper divisors (6771217).

265505423 is an equidigital number, since it uses as much as digits as its factorization.

265505423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42177.

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 265505423 is about 16294.3371451557. The cubic root of 265505423 is about 642.7239232213.

The spelling of 265505423 in words is "two hundred sixty-five million, five hundred five thousand, four hundred twenty-three".