255505023 has 22 divisors (see below), whose sum is σ = 383343944. Its totient is φ = 170297316.

The previous prime is 255505021. The next prime is 255505043. The reversal of 255505023 is 320505552.

It is not a de Polignac number, because 255505023 - 2¹ = 255505021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255505021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 56886 + ... + 61212.

Almost surely, 2^255505023 is an apocalyptic number.

255505023 is a deficient number, since it is larger than the sum of its proper divisors (127838921).

255505023 is an frugal number, since it uses more digits than its factorization.

255505023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357 (or 4330 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 255505023 is about 15984.5244846383. The cubic root of 255505023 is about 634.5509239345.

The spelling of 255505023 in words is "two hundred fifty-five million, five hundred five thousand, twenty-three".