403255 has 4 divisors (see below), whose sum is σ = 483912. Its totient is φ = 322600.

The previous prime is 403253. The next prime is 403261. The reversal of 403255 is 552304.

It is a happy number.

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

It is not a de Polignac number, because 403255 - 2¹ = 403253 is a prime.

It is a super-2 number, since 2×403255² = 325229190050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40321 + ... + 40330.

It is an arithmetic number, because the mean of its divisors is an integer number (120978).

2⁴⁰³²⁵⁵ is an apocalyptic number.

403255 is a deficient number, since it is larger than the sum of its proper divisors (80657).

403255 is an equidigital number, since it uses as much as digits as its factorization.

403255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80656.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 403255 is about 635.0236216079. The cubic root of 403255 is about 73.8799490025.

Adding to 403255 its reverse (552304), we get a palindrome (955559).

The spelling of 403255 in words is "four hundred three thousand, two hundred fifty-five".