401255 has 4 divisors (see below), whose sum is σ = 481512. Its totient is φ = 321000.

The previous prime is 401243. The next prime is 401279. The reversal of 401255 is 552104.

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

It is not a de Polignac number, because 401255 - 2¹⁶ = 335719 is a prime.

It is a super-2 number, since 2×401255² = 322011150050, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 6.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401255.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40121 + ... + 40130.

It is an arithmetic number, because the mean of its divisors is an integer number (120378).

2⁴⁰¹²⁵⁵ is an apocalyptic number.

401255 is a deficient number, since it is larger than the sum of its proper divisors (80257).

401255 is an equidigital number, since it uses as much as digits as its factorization.

401255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80256.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 401255 is about 633.4469196389. The cubic root of 401255 is about 73.7576071824.

Adding to 401255 its reverse (552104), we get a palindrome (953359).

It can be divided in two parts, 401 and 255, that added together give a palindrome (656).

The spelling of 401255 in words is "four hundred one thousand, two hundred fifty-five".