523255 has 4 divisors (see below), whose sum is σ = 627912. Its totient is φ = 418600.

The previous prime is 523219. The next prime is 523261. The reversal of 523255 is 552325.

523255 is nontrivially palindromic in base 16.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-523255 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52321 + ... + 52330.

It is an arithmetic number, because the mean of its divisors is an integer number (156978).

2⁵²³²⁵⁵ is an apocalyptic number.

523255 is a deficient number, since it is larger than the sum of its proper divisors (104657).

523255 is a wasteful number, since it uses less digits than its factorization.

523255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104656.

The product of its digits is 1500, while the sum is 22.

The square root of 523255 is about 723.3636706388. The cubic root of 523255 is about 80.5819542669.

The spelling of 523255 in words is "five hundred twenty-three thousand, two hundred fifty-five".